FAJDA, Oleksandra I., HRINCHENKO, Borys V., SNIHUR, Oleh V., BARYLYAK, Liliya G. and ZUKOW, Walery. What Kerdoe’s Vegetative Index really reflects?. Journal of Education, Health and Sport. Online. 23 December 2015. Vol. 5, no. 12, pp. 279-288. [Accessed 29 June 2025].