00000nam a2200000 a 4500 20251203110844.0 0898713706 515.7242 LAN Lanczos, Cornelius Linear differential operators Philadelphia Siam 1996 xvii 564p. 24 cm. PB Classics in applied mathematics Calculus, operational Differential equations, Linear _ 126744 LIBSC C 105133 105133 0 0 0 0 PU PU 2007-12-18 2608.32 0 515.7242 LAN 126744 BK