References
- Buikis , A. 1990 . “ Conservative spline—approximation of differential equatio with discontinuous coefficients (in Russian) ” . In Numerical analysis and math modelling , 487 – 491 . Warsaw : Banach Center Publ. 24, PWN .
- Samarskij , A. A. and Nicolaev , E. S. 1978 . “ Methods of the differential equations solution ” . Moskow : Nauka . (in Russian)
- Siegel , R. and Howell , J. B. 1972 . “ Thermal raditio heat transfer ” . 294 – 296 . Moskow : Mc Craw/ Hill Book Company . Publishing “Mir”, 1975 part 8, (Russian)