Valentina Yu. Apresjan. Russian possessive constructions with overt ‘be’ and zero copula: rules and errors
RJANO. 2017. № 1 (33), Pages. 86 - 115

Elena A. Nikishina. The genre of “letter to the newspaper” in the 1920s in the Soviet Union and in emigration (based on request letters)
RJANO. 2013. № 1 (25), Pages. 158 - 182