Frey R, Volodin IA, Volodina EV, ym. Savannah roars: The vocal anatomy and the impressive rutting calls of male impala (Aepyceros melampus) ? highlighting the acoustic correlates of a mobile larynx.  2019. Available at: https://onlinelibrary.wiley.com/doi/abs/10.1111/joa.13114.

Volodin IA, Sibiryakova OV, Frey R, ym. Individuality of distress and discomfort calls in neonates with bass voices: Wild-living goitred gazelles ( Gazella subgutturosa) and saiga antelopes ( Saiga tatarica). Ethology. 2017;123(5):386 - 396. Available at: http://doi.wiley.com/10.1111/eth.2017.123.issue-5.