TY  - JOUR
AU  - István Kovács
AU  - Géza Tóth
TI  - Multiple coverings with closed polygons
JO  - The electronic journal of combinatorics
PY  - 2015
VL  - 22
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.37236/4227/
DO  - 10.37236/4227
ID  - 10_37236_4227
ER  -