@article{MZM_1993_53_4_a1,
     author = {O. V. Borodin},
     title = {Bidegree of graph and degeneracy number},
     journal = {Matemati\v{c}eskie zametki},
     pages = {13--20},
     publisher = {mathdoc},
     volume = {53},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_53_4_a1/}
}