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QAPLIB - A Quadratic Assignment Problem Library
Burkard, Rainer E., (1997)
Problem Solving in Airline Operations - Marrying end-user modeling and large-scale optimization pays off at SAS and other carriers.
Andersson, Erik, (2005)
Airline Crew Rostering: Problem Types, Modeling, and Optimization
Kohl, Niklas, (2004)