@article{10_26493_1855_3974_1474_d54, author = {Qi Yan and Xian'an Jin}, title = { {Extremal} embedded graphs }, journal = {Ars Mathematica Contemporanea}, pages = {637--652}, publisher = {mathdoc}, volume = {17}, number = {2}, year = {2019}, doi = {10.26493/1855-3974.1474.d54}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.1474.d54/} }