If you are looking for the textbook (Трудовое право России) edited by E.B. Khokhlov and V.A. Safonov , it is a foundational academic resource often used in law schools like SPbU.
Хохлов, Е. Б. Трудовое право России : учебник для вузов + CD / Е. Б. Хохлов, В. А. Сафонов ; под общей редакцией Е. Б. Хохлова, В. Юрайт skachat uchebnik trudovoe pravo pod redaktsiei khokhlova
You can read the text of "Labor Law of Russia" (authored by Safonov, Khokhlov, and Mavrin) online for free and without registration at Yandex Books. If you are looking for the textbook (Трудовое