by Ferguson, J.S, Koenig, J.P, White, S.M
Published in Proceedings (1999)

by J.P. KOENIG, W.P. FORNOF
Year of Publication 27.10.2004

by Koenig, J.P, Boush, G.M, Erickson, E.H. JR
Published in Journal of apicultural research (1987)

by Koenig J.P, Guilloud M, Schwenzfeier A
Published in Genie Rural (1979)

by Koenig, J.P, Boush, G.M, Erickson, E.H. Jr
Published in American bee journal (01.08.1987)

by Connell, T.R, Koenig, J.P, Stevenson, W.R, Kelling, K.A, Curwen, D, Wyman, J.A, Binning, L.K
Published in Journal of production agriculture (01.10.1991)

by Koenig, J.P, Boush, G.M, Erickson, E.H. Jr
Published in American bee journal (01.03.1986)