Sulyak S. G. «Ethnic Groups and Languages of Moldavia According to the Results of the Census of 2004 and the Statistics of the State Enterprise “Centre for State Information Resources ‘Registru'”» // Rusin Studies. An Abstracts Journal 2018. №1 C.44-46
Sulyak Sergey G. «Ethnic Groups and Languages of Moldavia according to the Results of the Census of 2004 and the Statistics of the State Enterprise «Centre for State Information Resources "Registru"»» // Rusin 2013. №3 (33) C.94-101
Sulyak Sergey G. «Rusins of the Carpatho-dniestrovian lands in medieval moldavian diplomacy (a general review)» // Rusin 2016. №1 (43) C.95-119