TY  - BOOK
AU  - Gurlebeck, Klaus
AU  - Sprobig, Wolfgang
TI  - Quaternionic Analysis and Elliptic Boundary Value Problems ( ISNM 89 )
SN  - 3764323825
U1  - 518 
PY  - 1990///
CY  - Berlin
PB  - Birkhauser-Verlag
ER  -