1. Common weeds in South Africa;Henderson,1966
2. The germination of the seeds of some weeds and ruderal plants after treatment with gibberellic acid solutions of different concentrations. {In Russ.} Dokl;Kosikova;Acad. Nauk. SSSR.,1960
3. Effect of gibberellins on the germination of agricultural seeds;Nakamura;Proc. int. Seed Test. Ass.,1960
4. Germination studies of the seed of Solanum laciniatum Ait. and S. aviculare Forst;Porter;N.Z. J. Exp. Agric.,1976
5. Temperature requirements for germination of dry-stored, cold-stored and buried seeds of Solanum dulcamara L;Roberts;New Phytol.,1977