Nutation and forced motion of the earth's pole from the data of latitude observations. (Nutat︠s︡ii︠a︡ i vynuzhdennoe Dvizhenie Poli︠u︡sov Zemli po dannym shirotnykh nabli︠u︡deniĭ) / 
Fedorov, Evgeny Pavlovich.
Oxford, 
1963.
[With a bibliography.]