TY - DATA AU - Costa, David G., author. TI - An Invitation to Variational Methods in Differential Equations SN - 9780817645366, 978-0-8176-4536-6 U1 - 515.352, PY - 2007/// CY - Boston, MA PB - Birkhäuser Boston KW - Calculus of Variations and Optimal Control, Optimization KW - Differential equations, partial KW - Differential Equations KW - Mathematics KW - Ordinary Differential Equations KW - Partial Differential Equations N1 - Mathematics and Statistics (Springer-11649) UR - http://dx.doi.org/10.1007/978-0-8176-4536-6 ER -