TY  - BOOK
AU  - Mathiak,Karl
TI  - Valuations of skew fields and projective Hjelmslev spaces
T2  - Lecture notes in mathematics
SN  - 038716099X
PY  - 1986///
CY  - Berlin , New York 
PB  - Springer-Verlag
KW  - Skew fields
KW  - Hjelmslev planes
N1  - Includes index; Bibliography: p. [112]-115
ER  -