TY  - JOUR
AU  - S. Siudut
TI  - Generalizations of Natanson’s lemma
JO  - Commentationes Mathematicae
PY  - 1990
SP  -  277
EP  - 286
VL  - 29
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v29i2.6279/
DO  - 10.14708/cm.v29i2.6279
LA  - pl
ID  - 10_14708_cm_v29i2_6279
ER  -