@phdthesis{9d6c22b88a914f6ab6d574c932669135,
title = "Perennial clovers and ryegrasses as understorey crops in cereals",
keywords = "brassica napus, catch cropping, catch crops, green manures, live mulches, trifolium pratense, triticum aestivum, brassica napus, catch cropping, catch crops, green manures, live mulches, trifolium pratense, triticum aestivum",
author = "G{\"o}ran Bergkvist",
year = "2003",
language = "English",
isbn = "91-576-6439-0",
series = "Acta Universitatis Agriculturae Sueciae. Agraria",
number = "414",
publisher = "Swedish University of Agricultural Sciences",
address = "Sweden",
}