TY  - BOOK
AU  - A V Bit︠s︡adze
AU  - ; D F Kalinichenko
TI  - A Collection of problems on the equations of mathematical physics
U1  - 530.15 BIT 
PY  - 1980///
CY  - Moscow
PB  -  : Mir Publishers
KW  - Mathematics
KW  - ;Mathematical physics
KW  - ;Differential equations, Partial
ER  -