Wilcove D., Rothstein D., Dubow J. et al., «Quantifying h reats to Imperiled Species in the United States,» BioScience 48 (1998): 607–615; Sala O., Chapin III F.,S., Armesto J., et al., «Global Biodiversity Scenarios for the Year 2100,» Science 287 (2000): P. 1770–1774.