1. A study of cauliflower (Brassica oleracea L., var. botrytis D.C.);Aamlid,1952
2. Curd initiation in the cauliflower (Brassica oleracea var. botrytis L.);Atherton,1987
3. On morphogenesis of lettuce leaves in relation to light and temperature;Bensink;Meded. Landbouwhogesch. Wageningen,1971
4. The Physiology of Flowering. Vol. I. The Initiation of Flowers;Bernier,1981
5. Environmental factors in curd initiation and curd growth of cauliflower in the field;Booij;Neth. J. Agric. Sci.,1987