Vacheva, Angelina. “The Russians and Russia in the Correspondеnce Between Valentin Jamerai-Duval and Anastasia Sokolova (1762–1774)”. Quaestio Rossica, Vol. 6, No. 4, Dec. 2018, P. 1110–1128, doi:10.15826/qr.2018.4.349.