@article{bwmeta1.element.bwnjournal-article-fmv77i1p12bwm,
author = {Jong Lee},
title = {Homeotopy groups of orientable 2-manifolds},
journal = {Fundamenta Mathematicae},
volume = {75},
year = {1972},
pages = {115-124},
zbl = {0224.57018},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv77i1p12bwm}
}
Lee, Jong. Homeotopy groups of orientable 2-manifolds. Fundamenta Mathematicae, Tome 75 (1972) pp. 115-124. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv77i1p12bwm/