Marco Bender, Clemens Thielen, Stephan Westphal. A Constant Factor Approximation for the Generalized Assignment Problem with Minimum Quantities and Unit Size Items. In Krishnendu Chatterjee, Jiri Sgall, editors, Mathematical Foundations of Computer Science 2013 - 38th International Symposium, MFCS 2013, Klosterneuburg, Austria, August 26-30, 2013. Proceedings. Volume 8087 of Lecture Notes in Computer Science, pages 135-145, Springer, 2013. [doi]
Abstract is missing.