Cagas, Bohumir and Machac, Radek (2002) The effect of grasses grown for seed in mixture with legumes on the incidence of weeds and soil nitrogen content. UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002. In: Powell, Jane and et al., (Eds.) Proceedings of the UK Organic Research 2002 Conference, Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth, pp. 53-54.