TY  - JOUR
AU  - Robert Lukot'ka
AU  - Ján Mazák
AU  - Xuding Zhu
TI  - Maximum 4-degenerate subgraph of a planar graph
JO  - The electronic journal of combinatorics
PY  - 2015
VL  - 22
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.37236/4265/
DO  - 10.37236/4265
ID  - 10_37236_4265
ER  -