TY - BOOK AU - Sommerfeld,Arnold TI - Partial differential equations in physics T2 - His lectures on theortical physics, SN - 8187169494 (Pbk) AV - QA3 .P8 vol. 1 U1 - 517.38 So55P 23 PY - 2016/// CY - Kolkata PB - Levant Books KW - Differential equations, Partial KW - Mathematical physics ER -