Here's the references Richard, each with a reasonable google translation.
For Moscow:
Каминский А.М. 2010. Наблюдения над редкими и малоизвестными птицами Москов-ской губернии // Рус. орнитол. журн. 19 (612): 2064-2067.
(Kaminsky AM 2010. Observations on the rare and little-known birds of the Moscow-tion province // Rus. ornitol. Zh. 19 (612): 2064-2067.)
For Perm:
Никонов Н.Г. 1973. Певчие птицы. 2-е доп. изд. Свердловск: 1-424.
(Nikonov NG 1973. Songbirds. 2nd ext. ed. Sverdlovsk: 1-424.)
Стариков В.П. 2002. Экология животных Ханты-Мансийского автономного округа: Учеб. пособие. Томск: 1- 94.
(Starikov VP 2002. Animal Ecology of Khanty-Mansi Autonomous District: Proc. allowance. Tomsk: 1- 94.)
Матвеева Г.К., Бобырь И.Г. 2006. Сероголовая гаичка и серый снегирь в Перми // Ма-териалы к распространению птиц на Урале, в Приуралье и Западной Сибири 11: 154-155.
(GK Matveev, IG Bobyr 2006 Tit and gray bullfinch in Perm // Ma rials to the spread of bird in the Urals and in the Urals and Western Siberia, 11: 154-155.)
Рябицев В.К. 2010. Серый снегирь Pyrrhula cineracea под Екатеринбургом // Рус. орни-тол. журн. 19 (621): 2307.
(Ryabitsev VK Grey 2010. Bullfinch Pyrrhula cineracea near Yekaterinburg // Rus. The roots-Tol. Zh. 19 (621): 2307.)
Here's part of the main text imperfectly translated and minus the references:
Outside the breeding season is celebrated from Moscow south to Saratov, Orenburg, Chelyabinsk, Omsk regions and the Altai Territory. In north to Perm and Tomsk. The same situation is observed in Kazakhstan, where Baikal Bullfinch may occur as far west to the south of the country. Such a strong shift in the area of wintering gray bullfinch west relative to the region gnezzhdovaniya suggests a lack of knowledge of this species, and the possibility of its nesting far west and south than is commonly believed. This is evidenced by the summer meeting of the gray-dream weight in Bashkiria. In the Far East gray dream-weights found in the winter and installed nesting east in the north of Sakhalin, where he may have nests. Outside the breeding season occurs in northeast China and the Korean peninsula. Not yet confirmed his meetings in Japan.