"Potkaly/butkaly kozaky" - "potkali/butkali kazaklari" zmist ta transformacija termina (XVII-XIX st.) = "Potkaly/butkaly Cossacks" - "potkali/butkali kazaklari" : meaning and the transformation of the term (XVII-XIX centuries) - Bačynsʹka, Olena Anatoliïvna 1971-; Sereda, Oleksandr (2021)