Feder, Tomas; Hell, Pavol; Jing, Huang List homomorphisms and circular arc graphs. (English) Zbl 0985.05048 Combinatorica 19, No. 4, 487-505 (1999). Reviewer: Péter Komjáth (Budapest) MSC: 05C85 05C75 05C15 68R10 PDFBibTeX XMLCite \textit{T. Feder} et al., Combinatorica 19, No. 4, 487--505 (1999; Zbl 0985.05048) Full Text: DOI
Hell, Pavol; Zhou, Huishan; Zhu, Xuding Homomorphisms to oriented cycles. (English) Zbl 0794.05037 Combinatorica 13, No. 4, 421-433 (1993). Reviewer: P.Horák (Bratislava) MSC: 05C20 05C99 05C38 PDFBibTeX XMLCite \textit{P. Hell} et al., Combinatorica 13, No. 4, 421--433 (1993; Zbl 0794.05037) Full Text: DOI
Häggkvist, R.; Hell, P.; Miller, D. J.; Neumann Lara, V. On multiplicative graphs and the product conjecture. (English) Zbl 0657.05028 Combinatorica 8, No. 1, 63-74 (1988). Reviewer: C.Radu MSC: 05C15 05C20 05C38 PDFBibTeX XMLCite \textit{R. Häggkvist} et al., Combinatorica 8, No. 1, 63--74 (1988; Zbl 0657.05028) Full Text: DOI