On the growth rates of complexity of threshold languages. - Arseny M. Shur; Irina A. Gorbunova (RAIRO Theor. Informatics Appl., 2010)

Repetition Threshold for Circular Words. - Irina A. Gorbunova (Electron. J. Comb., 2012)

On Pansiot Words Avoiding 3-Repetitions. - Irina A. Gorbunova; Arseny M. Shur (Int. J. Found. Comput. Sci., 2012)