@book{5506e160259845d69f3951108b93c57b,
title = "Produktierelaties voor sleufloos draineren (v-vormige ploeg) op zware klei",
keywords = "zware kleigronden, drainageploegen, drainage uitrusting, arbeid (werk), drainage door leidingen, buisdrainage, tijd, arbeidskunde, clay soils, drain ploughs, drainage equipment, labour, pipe drainage, tile drainage, time, work study",
author = "J.G.S. Wilde and J. Florax",
year = "1987",
language = "Nederlands",
series = "ICW nota",
publisher = "ICW",
number = "1833",
}