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Up To €10 (0) € 10 Tot € 20 (0) € 20 Tot € 50 (2) € 50 En Meer (0)

Thomas, Ross (2) Bryndza, Robert (2) Chapman, Gary, Campbell, Ross (2) Ross, Jeanne W., Beath, Cynthia M. (1) Morrison, Gary R. (wayne State University), Ross, Steven J., Morrison, Jennifer R., Kalman, Howard K. (ithaca College) (1)

2012 (1) 2005 (1)

Overig (2)