In memoria professor Dr Jan de WildeJoop Beetsma · 1984

Behaviour ofVarroamites invading honey bee brood cellsWillem J. Boot; Joop Beetsma; Johan N. M. Calis · 1994

Observations on the initiation and stimulation of oviposition of theVarroamiteJoop Beetsma; Kees Zonneveld · 1992

Differential periods ofVarroamite invasion into worker and drone cells of honey beesWillem J. Boot; Johan N. M. Calis; Joop Beetsma · 1992

Does time spent on adult bees affect reproductive success of Varroa mites?Willem J. Boot; Johan N. M. Calis; Joop Beetsma · 1995

Natural selection ofVarroa jacobsoniexplains the different reproductive strategies in colonies ofApis ceranaandApis melliferaWillem J. Boot; Johan N.M. Calis; Joop Beetsma; Dong Minh Hai; Nguyen Kim Lan; Tran Van Toan; Le Quang Trung; Nguyen Hung Minh · 1999

Invasion of <i>Varroa jacobsons</i> into honey bee brood cells: a matter of chance or choice?Boot, Willem J; Calis, Johan N M; Beetsma, Joop · Journal of Apicultural Research · 1993

IntroductionJiggins, Janice; Ison, Ray; Röling, Niels · Outlook on Agriculture · 2014

Consumer concerns about foodGregory, N.G. · Outlook on Agriculture · 2000

MonitorOutlook on Agriculture · 2004

Scientific research – in whose interest?Outlook on Agriculture · 2004

Outlook for Turkey's hazelnut sectorYavuz, Fahri; Ercisli, Sezai · Outlook on Agriculture · 2006

EditorialOutlook on Agriculture · 2010

MonitorOutlook on Agriculture · 2001

CalendarOutlook on Agriculture · 2002