TY  - DATA
AU  - H. Jürgensen
AU  -  H.J. Weinert
AU  -  M. Petrich
TI  - Semigroups
T2  - Lecture Notes in Mathematics
SN  - 9783540386568
PY  - 1981///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0089803
ER  -