On the class s0 of real sequences. - Dragan Djurcic; Ljubisa D. R. Kocinac; Malisa R. Zizovic (Appl. Math. Lett., 2012)

On a subclass of the class of rapidly varying sequences. - Dragan Djurcic; Nebojsa Elez; Ljubisa D. R. Kocinac (Appl. Math. Comput., 2015)

Translational Regular Variability and the Index Function. - Danica Fatic; Dragan Djurcic; Ljubisa D. R. Kocinac (Axioms, 2024)