TY  - BOOK
AU  - Hackbusch, Wolfgang  
TI  - Elliptic differential equations: theory and numerical treatment
SN  - 9783662549605
U1  - 515.353 H1154e2 
PY  - 2017///
CY  - Verlag
PB  - Springer
KW  - Differential equations
KW  - Elliptic equations
ER  -