TY  - BOOK
AU  - Roggenkamp Klaus W
TI  - Collection of informal reports and seminears
T2  - Lecture notes in mathematics
U1  - B29M15, L01.1 
PY  - 1970///
CY  - Berlin
PB  - Springer-Verlag       
KW  - Algebra
N1  - Bibliography 282-288p
ER  -