TY  - GEN
AU  - Jost, Jurgen 
TI  - Partial differential equations
SN  - 9781461448082
U1  - 515.353 
PY  - 2013///
CY  - New York
PB  - Springer
N1  - 1. Introduction: What are partial differential equations?
2. The laplace equation as the prototype of an elliptic partial differential equation of second order
3. The maximum principle
ER  -