ID:DA02355084
Den Boer, P. J.
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edited by P.J. den Boer, H.U. Thiele and F. Weber
H. Veenman & Zonen 1979 Miscellaneous papers (Landbouwhogeschool Wageningen) 18
Available at 2 libraries
P. J. den Boer ; with a mathematical appendix by J. Reddingius
H. Veenman & Zonen B.V. 1977 Mededeelingen no. 169 , Miscellaneous papers 14
Available at 1 libraries
edited by P.J. den Boer and G.R. Gradwell
Pudoc ; 1971, c1970
Available at 18 libraries
