中国科学院数学与系统科学研究院期刊网
AMS
Smallest Close to Regular Bipartite Graphs without an Almost Perfect Matching
Lutz VOLKMANN, Axel ZINGSEM
Acta Mathematica Sinica . 2010, (8): 1403 -1412 .  DOI: 10.1007/s10114-010-9124-1