FRIEDL, Thomas W.P.; KLUMP, Georg M. Sexual selection in the lek-breeding European treefrog: body size, chorus attendance, random mating and good genes. S. 1141–1154. Animal Behaviour [online]. 2005-11 [cit. 2021-03-20]. Roč. 70, čís. 5, s. 1141–1154. doi:10.1016/j.anbehav.2005.01.017. (anglicky)
MILLER, Christine W; MOORE, Allen J. A potential resolution to the lek paradox through indirect genetic effects. S. 1279–1286. Proceedings of the Royal Society B: Biological Sciences [online]. 2007-05-22. Roč. 274, čís. 1615, s. 1279–1286. doi:10.1098/rspb.2006.0413. (anglicky)