TY  - JOUR
AU  - Grassmann, E.
TI  - The Existence of Quadratic Differentials in Simply Connected Regions of the Complex Plane
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 83
EP  - 91
VL  - 25
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-006-4/
DO  - 10.4153/CJM-1973-006-4
ID  - 10_4153_CJM_1973_006_4
ER  -