@article{1183538500,
author = {Little, C. H. C. and Holton, D. A.},
title = {A new characterization of planar graphs},
journal = {Bull. Amer. Math. Soc.},
volume = {83},
number = {6},
year = {1977},
pages = { 137-138},
language = {en},
url = {http://dml.mathdoc.fr/item/1183538500}
}
Little, C. H. C.; Holton, D. A. A new characterization of planar graphs. Bull. Amer. Math. Soc., Tome 83 (1977) no. 6, pp. 137-138. http://gdmltest.u-ga.fr/item/1183538500/