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- Minimum Cost Homomorphism Dichotomy for Oriented CyclesGregory Gutin, Arash Rafiey, Anders Yeo. AAIM 2008: 224-234 [doi]
- The Dichotomy of Minimum Cost Homomorphism Problems for DigraphsPavol Hell, Arash Rafiey. siamdm, 26(4):1597-1608, 2012. [doi]
- Level of repair analysis and minimum cost homomorphisms of graphsGregory Gutin, Arash Rafiey, Anders Yeo, Michael Tso. DAM, 154(6):881-889, 2006. [doi]
- Level of Repair Analysis and Minimum Cost Homomorphisms of GraphsGregory Gutin, Arash Rafiey, Anders Yeo, Michael Tso. AAIM 2005: 427-439 [doi]
- On the approximation of minimum cost homomorphism to bipartite graphsMonaldo Mastrolilli, Arash Rafiey. DAM, 161(4-5):670-676, 2013. [doi]
- Approximation of Minimum Cost HomomorphismsPavol Hell, Monaldo Mastrolilli, Mayssam Mohammadi Nevisi, Arash Rafiey. esa 2012: 587-598 [doi]