TY  - JOUR
AU  - Ch. C. Pugh
TI  - An Improved closing lemma and a general density theorem
JO  - Matematika
PY  - 1968
SP  - 136
EP  - 146
VL  - 12
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1968_12_6_a7/
LA  - ru
ID  - MAT_1968_12_6_a7
ER  -