%0 Journal Article %A V. I. Gryn' %T Generalization of Pomraning boundary conditions to $P_{N}$-approximation of the method of spherical harmonics for the transport equation %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1984 %P 694-708 %V 24 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_5_a7/ %G ru %F ZVMMF_1984_24_5_a7