TY  - JOUR
AU  - Burghelea, Dan
TI  - A refinement of Betti numbers and homology in the presence of a continuous function, I
JO  - Algebraic and Geometric Topology
PY  - 2017
SP  - 2051
EP  - 2080
VL  - 17
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2017.17.2051/
DO  - 10.2140/agt.2017.17.2051
ID  - 10_2140_agt_2017_17_2051
ER  -