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by Roy van Driesche (University of Massachusetts ); Mark Hoddle (University of California, Riverside ); Ted Center (Agricultural Research Service, USA )
by van den Brink-Budgen, Roy
by Van Arsdale, Roy
by Tak, Peter J.P.; Jendly, Manon; Kellens, George; et al.
by Van Driesche, Roy; Bellows , Jr., Thomas S.
by Roy Van Den Brink-Budgen
by Dyke, Roy Van
by Van Dyke, Roy Nathaniel Paul