Peng Cheng Shigeru Masuyama Formulas for Counting the Numbers of Connected Spanning Subgraphs with at Most <i>n</i>+1 Edges in a Complete Graph K<sub>n</sub>. 2314-2321 2008 91-A IEICE Transactions 9 http://dx.doi.org/10.1093/ietfec/e91-a.9.2314 db/journals/ieicet/ieicet91a.html#ChengM08a