by Os, E.A. van, Michielsen, J.M.G.P, Corver, F.J.M, Berg, J.V. van den, Bruins, M.A, Porskamp, H.A.J, Zande, J.C. van de
Published in Acta horticulturae (01.01.2005)

by Porskamp, H.A.J
Published in IMAG rapport (Netherlands) (1999)

by Porskamp H.A.J
Published in IMAG-Publikaties (Netherlands). no. 133 (1980)

by Holterman, H.J, van de Zande, J.C, Porskamp, H.A.J, Huijsmans, J.F.M
Published in Computers and electronics in agriculture (01.12.1997)

by Zande, J.C. van de, Porskamp, H.A.J, Michielsen, J.M.G.P, Holterman, H.J, Huijsmans, J.F.M
Published in Aspects of applied biology (2000)

by Zande, J.C. van de, Porskamp, H.A.J, Michielsen, J.M.P.G. (Institute of Agricultural and Environmental Engineering, Wageningen (The Netherlands))
Published in Parasitica (2001)

by Zande, J.C. van de, Porskamp, H.A.J, Holterman, H.J
Year of Publication 2001

by Porskamp H.A.J
Published in Stikstof (1979)

by Porskamp, H.A.J
Published in Publikatie - Instituut voor Mechanisatie, Arbeid en Gebouwen (1982)

by Porskamp, H.A.J
Published in Landbouwmechanisatie (1977)

by Zande, J.C. van de, Huijsmans, J.F.M, Porskamp, H.A.J, Michielsen, J.M.G.P, Stallinga, H, Holterman, H.J, Jong, A. de
Published in IMAG Rapport (Netherlands) (2000)

by Heijne, B. (Research Station for Fruit Growing, Wilhelminadorp (Pays Bas)), Porskamp, H.A.J
Published in Bulletin OILB SROP (France) (1996)

by Holterman, H.J, Porskamp, H.A.J, Van de Zaande, J.C. (Wageningen Agricultural Univ., (Netherlands). Inst. of Agricultural and Environmental Engineering (IMAG-DLO))
Year of Publication 1998

by Zuydam, R.P. van (Institut fuer Landtechnik, Arbeit und Gebaeude, Wageningen (Netherlands)), Porskamp, H.A.J
Published in Mitteilungen aus der Biologischen Bundesanstalt fuer Land-und Forstwirtschaft Berlin-Dahlem (Germany) (1993)

by Porskamp, H.A.J. (Agricultural Research Department, Wageningen (Pays Bas). Institute of Agricultural Engineering), Huijsmans, J.F.M, Van Zuydam, R.P
Published in Annales ANPP (France) (1993)

by Porskamp, H.A.J, Brandsma, C
Published in Landbouwmechanisatie (1981)

by Porskamp, H.A.J, Brandsma, C. (Instituut voor Mechanisatie, Arbeid en Gebouwen, Wageningen (Netherlands))
Published in Landbouwmechanisatie (Netherlands) (01.10.1981)