Zapiski Rossīĭskoĭ akademīi nauk po Fiziko-matematicheskomu otdi︠e︡lenīi︠u︡. Mémoires de l'Académie des sciences de Russie. Classe physico-mathématique. VIIIe série.
Rossiĭskai︠a︡ akademii︠a︡ nauk.Fiziko-matematicheskoe otdi︠e︡lenīe.
Petrograd : Tip. Rossīĭskoĭ akademīi nauk,
1917-1925.
Science.
Natural history.
Also issued on microfilm from University of Michigan, University Library, Preservation Office Microfilming Unit.

Zapiski Akademīi nauk po Fiziko-matematicheskomu otdi︠e︡lenīi︠u︡. VIIIe série
Zapiski Akademii nauk Soi︠u︡za SSR po Otdelenii︠u︡ fiziko-matematicheskikh nauk. VIIIe série