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SeMA Journal > 2013 > 62 > 1 > 27-59
Annals of Global Analysis and Geometry > 2010 > 37 > 3 > 221-240
Networks and Spatial Economics > 2004 > 4 > 1 > 23-38
SeMA Journal > 2013 > 62 > 1 > 27-59
Annals of Global Analysis and Geometry > 2010 > 37 > 3 > 221-240
Networks and Spatial Economics > 2004 > 4 > 1 > 23-38