1. Juniper BE, Robins RJ, Joel DM. The carnivorous plants 1989; London Academic Press Ltd. 1 - 353
2. Taylor P. The genus Utricularia: A taxonomic monograph 1989; 4:Kew Kew Bulletin, Additional Series 1 - 724
3. Mineral nutrition of carnivorous plants: A review
4. Rapid turnover of traps in Utricularia vulgaris L.