TY  - DATA
AU  - K. E. Aubert
AU  -  W. Ljunggren
TI  - Proceedings of the 15th Scandinavian Congress Oslo 1968
T2  - Lecture Notes in Mathematics
SN  - 9783540362463
PY  - 1969///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0060247
ER  -