Espina humeral (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Espina humeral" in Spanish language version.

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Matsui, M. (2009). «A new species of Kalophrynus with a unique male humeral spine from Peninsular Malaysia (Amphibia, Anura, Microhylidae)». Zoological science 26: 579-585. doi:10.2108/zsj.26.579.
Hutter, C. R., Esobar-Lasso, S., Rojas-Morales, J. A., Gutiérrez-Cárdenas, P. D. A., Imba, H. & Guayasamin, J. M. (2013). «The territoriality, vocalizations and aggressive interactions of the red-spotted glassfrog, Nymphargus grandisonae, Cochran and Goin, 1970 (Anura: Centrolenidae)». Journal of Natural History 47 (47-48): 3011-3032. doi:10.1080/00222933.2013.792961.