Brennan, Shane (April 2016). "Did the Mossynoikoi whistle? A consideration of the distance between poleis in the Black Sea mountains given at Anabasis 5.4.31". Greece and Rome. 63 (1): 91–105. doi:10.1017/S0017383515000261. S2CID163478579.
Asher, R. E.; Simpson, J. M. Y. (1994). "Whistled Speech and Whistled Language". The Encyclopedia of Language and Linguistics. Oxford: Pergamon. pp. 573–576. doi:10.1016/B0-08-044854-2/00034-1. ISBN9780080448541.
Busnel, R. G. (1970). "Recherches experimentales sur la langue sifflee de Kuskoy" [Experimental Research on the Whistling Language of Kuskoy]. Revue de Phonétique Appliquée (in French). 14–15: 41–75, 70. S2CID193025497. ERICEJ041036.
Brennan, Shane (April 2016). "Did the Mossynoikoi whistle? A consideration of the distance between poleis in the Black Sea mountains given at Anabasis 5.4.31". Greece and Rome. 63 (1): 91–105. doi:10.1017/S0017383515000261. S2CID163478579.
Busnel, R. G. (1970). "Recherches experimentales sur la langue sifflee de Kuskoy" [Experimental Research on the Whistling Language of Kuskoy]. Revue de Phonétique Appliquée (in French). 14–15: 41–75, 70. S2CID193025497. ERICEJ041036.