TY  - DATA
AU  - E. Looijenga
AU  -  D. Siersma
AU  -  F. Takens
TI  - Geometry Symposium Utrecht 1980
T2  - Lecture Notes in Mathematics
SN  - 9783540386414
PY  - 1981///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0096221
ER  -