@book{2b72de66adc0462ea45707c9882402ea,
title = "Improving and disseminating prototypes",
keywords = "alternatieve landbouw, biologische landbouw, ecologie, gewassen, landbouw, fenologie, acclimatisatie, onderzoek, ge{\"i}ntegreerde bedrijfssystemen, wetenschappelijk onderzoek, wetenschap, alternative farming, organic farming, ecology, crops, agriculture, phenology, acclimatization, research, integrated farming systems, scientific research, science",
author = "P. Vereijken and {van Bol}, V. and {El Titi}, A.",
year = "1998",
language = "English",
series = "Progress reports of the research network on integrated and ecological arable farming systems for EU and associated countries",
publisher = "AB-DLO",
number = "4",
address = "Netherlands",
}