1. The cultivated Brassicas;Bailey;Gentes Herbarum,1930
2. Studies of premature flower formation in wintered-over cabbage;Boswell;Maryland Agric. Exp. Sta. Bull.,1929
3. A study of certain factors affecting buttoning of cauliflower;Carew;Proc. Amer. Soc. Hort. Sci.,1948
4. Sur la nature morphologique de la “pomme” de Chouxfleurs;Coupin;Compt. Rend. Acad. Sci. (Paris),1923