@第{zbMATH01441661条，作者＝{Cavicchioli，Alberto和Ruini，Beatrice和Spaggiari，Fulvia}，标题={双桥结的循环分支覆盖}，FJournal＝｛Revista Matem｛a｝tica Complutense｝，日志={Rev.Mat.Complet.}，ISSN={1139-1138}，体积＝{12}，数字={2}，页码={383--416}，年份={1999}，语言={英语}，关键词={57M12,57M25,57M50,57N10,57R65}，zbMATH={1441661}，Zbl={0952.57001}}