Wen, Xingang; Xu, Yinfeng; Zhang, Huili Online traveling salesman problem with deadlines and service flexibility. (English) Zbl 1323.90060 J. Comb. Optim. 30, No. 3, 545-562 (2015). MSC: 90C27 PDFBibTeX XMLCite \textit{X. Wen} et al., J. Comb. Optim. 30, No. 3, 545--562 (2015; Zbl 1323.90060) Full Text: DOI
Zhang, Huili; Xu, Yinfeng; Wen, Xingang Optimal shortest path set problem in undirected graphs. (English) Zbl 1320.90097 J. Comb. Optim. 29, No. 3, 511-530 (2015). MSC: 90C35 PDFBibTeX XMLCite \textit{H. Zhang} et al., J. Comb. Optim. 29, No. 3, 511--530 (2015; Zbl 1320.90097) Full Text: DOI