TY  - JOUR
AU  - Dressler, Robert E.
TI  - A property of the $\varphi $ and $\sigma _j$ functions
JO  - Compositio Mathematica
PY  - 1975
SP  - 115
EP  - 118
VL  - 31
IS  - 2
PB  - Noordhoff International Publishing
UR  - http://www.numdam.org/item/CM_1975__31_2_115_0/
LA  - en
ID  - CM_1975__31_2_115_0
ER  -