@article{05263465,
title = {Decomposing a planar graph into a forest and a subgraph of restricted maximum degree.},
journal = {Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]},
volume = {4},
year = {2007},
pages = {296-299},
zbl = {1132.05313},
language = {en},
url = {http://dml.mathdoc.fr/item/05263465}
}
Borodin, O.V.; Ivanova, A.O.; Stechkin, B.S. Decomposing a planar graph into a forest and a subgraph of restricted maximum degree.. Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only], Tome 4 (2007) pp. 296-299. http://gdmltest.u-ga.fr/item/05263465/