TY  - JOUR
AU  - Piotr Bartłomiejczyk
AU  - Piotr Nowak-Przygodzki
TI  - Gradient versus proper gradient homotopies
JO  - Homology, homotopy, and applications
PY  - 2021
SP  - 61
EP  - 76
VL  - 23
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4310/HHA.2021.v23.n1.a5/
DO  - 10.4310/HHA.2021.v23.n1.a5
LA  - en
ID  - HHA_2021_23_1_a4
ER  -