Rugido (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Rugido" in Portuguese language version.

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Weissengruber, G. E.; Forstenpointner, G.; Peters, G.; Kübber‐Heiss, A.; Fitch, W. T. (2002). «Hyoid apparatus and pharynx in the lion (Panthera leo), jaguar (Panthera onca), tiger (Panthera tigris), cheetah (Acinonyx jubatus) and domestic cat (Felis silvestris f. catus)». Journal of anatomy. 201 (3): 195-209. doi:10.1046/j.1469-7580.2002.00088.x
Pfefferle, D.; West, P. M.; Grinnell, J.; Packer, C.; Fischer, J. (2007). «Do acoustic features of lion, Panthera leo, roars reflect sex and male condition?». The Journal of the Acoustical Society of America. 121 (6): 3947-3953. ISSN 0001-4966. doi:10.1121/1.2722507

Hast, M. H. (1989). «The larynx of roaring and non-roaring cats». Journal of Anatomy. 163: 117-121

Ananthakrishnan, Gopal, Robert Eklund, Gustav Peters, Gopal & Evans Mabiza. 2011. An acoustic analysis of lion roars. II: Vocal tract characteristics. In: Quarterly Progress and Status Report TMH-QPSR, Volume 51, 2011. pp. 5–8

Pfefferle, D.; West, P. M.; Grinnell, J.; Packer, C.; Fischer, J. (2007). «Do acoustic features of lion, Panthera leo, roars reflect sex and male condition?». The Journal of the Acoustical Society of America. 121 (6): 3947-3953. ISSN 0001-4966. doi:10.1121/1.2722507