TY  - JOUR
AU  - Chung-Chun Yang
TI  - On Deficiencies of Differential Polynomials, II.
JO  - Mathematische Zeitschrift
PY  - 1972
SP  - 107
EP  - 112
VL  - 125
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1972__125_171694/
ID  - MZ_1972__125_171694
ER  -