(a) Reference 1; (b)C. E. Jones and K. Klier, "Optical and spectroscopic methods for the study of surfaces," Ann. Rev. Mater. Sci. 2, 1–32 (1972);(c) W. D. Ross, "Theoretical computation of light scattering power: Comparison between TiO_{2} and air bubbles," J. Paint Tech. 43, 50–66 (1971); E. Hoffmann, C. J. Lancucki, and J. W. Spencer, "Measurement of the hiding power of paints," J. Oil Col. Chem. Assoc. 55, 292–313 (1972); (e) P. B. Mitton, "Opacity, hiding power, and tinting strength, in Pigment Handbook, Vol. III. Characterization and Physical Relationships, edited by T. C. Patton (Wiley, New York, 1973), pp. 289–339.

K. Klier, "Absorption and scattering in plane parallel turbid media," J. Opt. Soc. Am. 62, 882–885 (1972).

A. Miele, "Method of particular solutions for linear, two-point boundary-value problems," J. Opt. Theory Appl. 2, 260–273 (1968); A. Miele, "General technique for solving nonlinear, two-point boundary-value problems via the method of particular solutions," J. Opt. Theory Appl. 5, 382–399 (1970).

The effects of sinusoidal variation (in the plane perpendicular to the surface normal) on the scattering characteristics have been studied:R. G. Giovanelli, "Radiative transfer in discontinuous media," Aust. J. Phys. 10, 227–239 (1957); R. G. Giovanuelli, "Radiative transfer in non-uniform media," Aust. J. Phys. 12, 164–170 (1959).

(a)R. Bellman and R. Kalaba, "On the principle of invariant imbedding and propagation through inhomogeneous media," Proc. Nat. Acad. Sci. USA 42, 629–632 (1956); (b) R. W. Preisendorfer, "A mathematical foundation for radiative transfer theory," J. Math. Mech. 6, 685–730 (1957); (c) R. Bellman, R. Kalaba, and G. M. Wing, "Invariant imbedding and mathematical physics. I. Particle processes," J. Math. Phys. 1, 280–308 (1960); (d) R. Bellman, R. Kalaba, and M. C. Prestrud, Invariant Imbedding and Radiative Transfer in Slabs of Finite Thickness (Elsevier, New York, 1963); (e) J. O. Mingle, The Invariant Imbedding Theory of Nuclear Transport (Elsevier, New York, 1973).

p. Kubelka, "New contributions to the optics of intensely lightscattering materials. Part I, "1 J. Opt. Soc. Am. 38, 448–457 (1948).

(a)R. Bellman and R. Kalaba, "On the principle of invariant imbedding and propagation through inhomogeneous media," Proc. Nat. Acad. Sci. USA 42, 629–632 (1956); (b) R. W. Preisendorfer, "A mathematical foundation for radiative transfer theory," J. Math. Mech. 6, 685–730 (1957); (c) R. Bellman, R. Kalaba, and G. M. Wing, "Invariant imbedding and mathematical physics. I. Particle processes," J. Math. Phys. 1, 280–308 (1960); (d) R. Bellman, R. Kalaba, and M. C. Prestrud, Invariant Imbedding and Radiative Transfer in Slabs of Finite Thickness (Elsevier, New York, 1963); (e) J. O. Mingle, The Invariant Imbedding Theory of Nuclear Transport (Elsevier, New York, 1973).

L. S. Pontryagin, V. G. Boltyansky, R. V. Gamkrelidze, and E. F. Mischenko, The Mathematical Theory of Optimal Processes, translated by D. E. Brown (MacMillan, New York, 1964).

S. Chandrasekhar, Radiative Transfer(Dover, New York, 1960).

L. S. Pontryagin, V. G. Boltyansky, R. V. Gamkrelidze, and E. F. Mischenko, The Mathematical Theory of Optimal Processes, translated by D. E. Brown (MacMillan, New York, 1964).

The effects of sinusoidal variation (in the plane perpendicular to the surface normal) on the scattering characteristics have been studied:R. G. Giovanelli, "Radiative transfer in discontinuous media," Aust. J. Phys. 10, 227–239 (1957); R. G. Giovanuelli, "Radiative transfer in non-uniform media," Aust. J. Phys. 12, 164–170 (1959).

(a) Reference 1; (b)C. E. Jones and K. Klier, "Optical and spectroscopic methods for the study of surfaces," Ann. Rev. Mater. Sci. 2, 1–32 (1972);(c) W. D. Ross, "Theoretical computation of light scattering power: Comparison between TiO_{2} and air bubbles," J. Paint Tech. 43, 50–66 (1971); E. Hoffmann, C. J. Lancucki, and J. W. Spencer, "Measurement of the hiding power of paints," J. Oil Col. Chem. Assoc. 55, 292–313 (1972); (e) P. B. Mitton, "Opacity, hiding power, and tinting strength, in Pigment Handbook, Vol. III. Characterization and Physical Relationships, edited by T. C. Patton (Wiley, New York, 1973), pp. 289–339.

(a)R. Bellman and R. Kalaba, "On the principle of invariant imbedding and propagation through inhomogeneous media," Proc. Nat. Acad. Sci. USA 42, 629–632 (1956); (b) R. W. Preisendorfer, "A mathematical foundation for radiative transfer theory," J. Math. Mech. 6, 685–730 (1957); (c) R. Bellman, R. Kalaba, and G. M. Wing, "Invariant imbedding and mathematical physics. I. Particle processes," J. Math. Phys. 1, 280–308 (1960); (d) R. Bellman, R. Kalaba, and M. C. Prestrud, Invariant Imbedding and Radiative Transfer in Slabs of Finite Thickness (Elsevier, New York, 1963); (e) J. O. Mingle, The Invariant Imbedding Theory of Nuclear Transport (Elsevier, New York, 1973).

R. McGill and P. Kenneth, "A convergence theorem on the iterative solution of nonlinear two-point boundary-value systems," in Proceedings of the XIVth LAF Congress, Paris, 1963, pp. 173–188; R. McGill and P. Kenneth, "Soludion of variational problems by means of a generalized Newton-Raphson operator," AIAA J. 2, 1761–1766 (1964).

(a) Reference 1; (b)C. E. Jones and K. Klier, "Optical and spectroscopic methods for the study of surfaces," Ann. Rev. Mater. Sci. 2, 1–32 (1972);(c) W. D. Ross, "Theoretical computation of light scattering power: Comparison between TiO_{2} and air bubbles," J. Paint Tech. 43, 50–66 (1971); E. Hoffmann, C. J. Lancucki, and J. W. Spencer, "Measurement of the hiding power of paints," J. Oil Col. Chem. Assoc. 55, 292–313 (1972); (e) P. B. Mitton, "Opacity, hiding power, and tinting strength, in Pigment Handbook, Vol. III. Characterization and Physical Relationships, edited by T. C. Patton (Wiley, New York, 1973), pp. 289–339.

K. Klier, "Absorption and scattering in plane parallel turbid media," J. Opt. Soc. Am. 62, 882–885 (1972).

G. Kortüm, Reflectance Spectroscopy (Springer-Verlag, New York, 1969).

R. McGill and P. Kenneth, "A convergence theorem on the iterative solution of nonlinear two-point boundary-value systems," in Proceedings of the XIVth LAF Congress, Paris, 1963, pp. 173–188; R. McGill and P. Kenneth, "Soludion of variational problems by means of a generalized Newton-Raphson operator," AIAA J. 2, 1761–1766 (1964).

A. Miele, "Method of particular solutions for linear, two-point boundary-value problems," J. Opt. Theory Appl. 2, 260–273 (1968); A. Miele, "General technique for solving nonlinear, two-point boundary-value problems via the method of particular solutions," J. Opt. Theory Appl. 5, 382–399 (1970).

L. S. Pontryagin, V. G. Boltyansky, R. V. Gamkrelidze, and E. F. Mischenko, The Mathematical Theory of Optimal Processes, translated by D. E. Brown (MacMillan, New York, 1964).

L. S. Pontryagin, V. G. Boltyansky, R. V. Gamkrelidze, and E. F. Mischenko, The Mathematical Theory of Optimal Processes, translated by D. E. Brown (MacMillan, New York, 1964).

S. M. Roberts and J. S. Shipman, Two-Point Boundary Value Problems: Shooting Methods (Elsevier, New York, 1972).

W. Schiesser, LEANS-III Introductory Programming Manual (Lehigh U. P., Bethlehem, Pa., 1971).

S. M. Roberts and J. S. Shipman, Two-Point Boundary Value Problems: Shooting Methods (Elsevier, New York, 1972).

L. C. Young, Lectures on the Calculus of Variations and Optimal Control Theory (W. B. Saunders, Philadelphia, 1969).

p. Kubelka, "New contributions to the optics of intensely lightscattering materials. Part I, "1 J. Opt. Soc. Am. 38, 448–457 (1948).

(a) Reference 1; (b)C. E. Jones and K. Klier, "Optical and spectroscopic methods for the study of surfaces," Ann. Rev. Mater. Sci. 2, 1–32 (1972);(c) W. D. Ross, "Theoretical computation of light scattering power: Comparison between TiO_{2} and air bubbles," J. Paint Tech. 43, 50–66 (1971); E. Hoffmann, C. J. Lancucki, and J. W. Spencer, "Measurement of the hiding power of paints," J. Oil Col. Chem. Assoc. 55, 292–313 (1972); (e) P. B. Mitton, "Opacity, hiding power, and tinting strength, in Pigment Handbook, Vol. III. Characterization and Physical Relationships, edited by T. C. Patton (Wiley, New York, 1973), pp. 289–339.

The effects of sinusoidal variation (in the plane perpendicular to the surface normal) on the scattering characteristics have been studied:R. G. Giovanelli, "Radiative transfer in discontinuous media," Aust. J. Phys. 10, 227–239 (1957); R. G. Giovanuelli, "Radiative transfer in non-uniform media," Aust. J. Phys. 12, 164–170 (1959).

A. Miele, "Method of particular solutions for linear, two-point boundary-value problems," J. Opt. Theory Appl. 2, 260–273 (1968); A. Miele, "General technique for solving nonlinear, two-point boundary-value problems via the method of particular solutions," J. Opt. Theory Appl. 5, 382–399 (1970).

(a)R. Bellman and R. Kalaba, "On the principle of invariant imbedding and propagation through inhomogeneous media," Proc. Nat. Acad. Sci. USA 42, 629–632 (1956); (b) R. W. Preisendorfer, "A mathematical foundation for radiative transfer theory," J. Math. Mech. 6, 685–730 (1957); (c) R. Bellman, R. Kalaba, and G. M. Wing, "Invariant imbedding and mathematical physics. I. Particle processes," J. Math. Phys. 1, 280–308 (1960); (d) R. Bellman, R. Kalaba, and M. C. Prestrud, Invariant Imbedding and Radiative Transfer in Slabs of Finite Thickness (Elsevier, New York, 1963); (e) J. O. Mingle, The Invariant Imbedding Theory of Nuclear Transport (Elsevier, New York, 1973).

S. Chandrasekhar, Radiative Transfer(Dover, New York, 1960).

W. Schiesser, LEANS-III Introductory Programming Manual (Lehigh U. P., Bethlehem, Pa., 1971).

G. Kortüm, Reflectance Spectroscopy (Springer-Verlag, New York, 1969).

L. S. Pontryagin, V. G. Boltyansky, R. V. Gamkrelidze, and E. F. Mischenko, The Mathematical Theory of Optimal Processes, translated by D. E. Brown (MacMillan, New York, 1964).

L. C. Young, Lectures on the Calculus of Variations and Optimal Control Theory (W. B. Saunders, Philadelphia, 1969).

S. M. Roberts and J. S. Shipman, Two-Point Boundary Value Problems: Shooting Methods (Elsevier, New York, 1972).

R. McGill and P. Kenneth, "A convergence theorem on the iterative solution of nonlinear two-point boundary-value systems," in Proceedings of the XIVth LAF Congress, Paris, 1963, pp. 173–188; R. McGill and P. Kenneth, "Soludion of variational problems by means of a generalized Newton-Raphson operator," AIAA J. 2, 1761–1766 (1964).