TY  - GEN
AU  - Hackbusch, Wolfgang
AU  - Bank, R E, S, ed.
TI  - Elliptic differential equations: Theory and numerical treatment
SN  - 9783662549605
U1  - 515.35 
PY  - 2017///
CY  - Germany
PB  - Springer
KW  - Mathematics
KW  - Differential Equations
ER  -