@article{SEMR_2007_4_a24,
     author = {O. V. Borodin and A. O. Ivanova and A. V. Kostochka and N. N. Sheikh},
     title = {Minimax degrees of quasiplane graphs without $4$-faces},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {435--439},
     publisher = {mathdoc},
     volume = {4},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2007_4_a24/}
}