TY  - JOUR
AU  - Olli LEHTO
TI  - On an extension of the concept of deficiency in the theory of meromorphic functions
JO  - Mathematica Scandinavica
PY  - 1953
SP  - 207
EP  - 212
VL  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1953__1_165500/
ID  - MS2_1953__1_165500
ER  -