1. New approach to an old problem — early flowering of gladiolus;Apte,1960
2. Photoperiodic responses of gladiolus;Borthwick;N. Amer. Gladiolus Counc. Bull.,1949
3. Light on gladioli;Borthwick;Flor. Rev.,1951
4. Forcing gladiolus with the aid of artificial light;Jones;Mass. Agr. Exp. Sta., Contr. Ser. Bull.,1929
5. Studies on production and flowering in gladiolus;Kosugi;Mem. Fac. Agr. Kagawa Univ.,1962