中国科学院数学与系统科学研究院期刊网
AMS
Exact Solution to an Extremal Problem on Graphic Sequences with a Realization Containing Every 2-Tree on k Vertices
De Yan ZENG, Dong Yang ZHAI, Jian Hua YIN
Acta Mathematica Sinica . 2020, (4): 462 -486 .  DOI: 10.1007/s10114-020-8300-1