Partial differential equations of mathematical physics.
Tychonov, A.N.,Samarski, A.A.
Partial differential equations of mathematical physics. - Holden-Day - v.2,illus.,23cm., - - .
1
517.944 Tyc-2
Partial differential equations of mathematical physics. - Holden-Day - v.2,illus.,23cm., - - .
1
517.944 Tyc-2