Dve progressii
By: I.B. Abelʹson.
Series: Nauchno-populi͡a︡rnai͡a︡ serii͡a︡ "Akademii͡a︡ nauk--stakhanovt͡s︡am"
Publisher: Izd-vo Akademii nauk SSSR
Published: 1938
Place of publication: Moskva
Language: rus
Number of pages: 163
Subjects: Series.; Mathematics.; Ratio and proportion.