TY - GEN AU - Olariu,Valter AU - Olteanu,Cristian Octav TI - First-order partial differential equations SN - 978-3-330-00026-1 AV - QA374 U1 - 515.353 PY - 2016/// CY - Saarbruecken PB - Lambert KW - Differential equations, Partial N1 - Bibliografie p. 170 ER -