Ivars; Bennett, Kevin L.; Bianchi, Gabriel; Boholst, Fredric; Cunen, Mary Ann Borg. Universal sex differences in the desire for sexual variety: tests from 52
(页面存档备份,存于互联网档案馆) Retrieved on Dec 7, 2009 Helander, A.; Vabö, E.; Levin, K.; Borg, S. Intra- and interindividual variability of carbohydrate-deficient transferrin