TY - BOOK AU - Birkhoff, Garrett AU - Rota, Gian-Carlo TI - Ordinary differential equations: _ SN - 9788126562107 U1 - 515.352 PY - 2016/// CY - New Delhi PB - Wiley KW - KW - Differential equations KW - Ordinary differential equations N1 - Includes index; Reprint 2016 ER -