Representation theorems for sequences of the classes C R c and E R c . Djurčić, Dragan; Torgašev, Aleksandar — 2004 Sibirskij Matematicheskij Zhurnal
A theorem of Galambos-Bojanić-Seneta type. Djurčić, Dragan; Torgašev, Aleksandar — 2009 Abstract and Applied Analysis
The strong asymptotic equivalence and the generalized inverse. Djurčić, Dragan; Torgašev, Aleksandar; Ješić, Siniša — 2008 Sibirskij Matematicheskij Zhurnal