DescriptionAleksandrFridman.png Russian mathematician and physicist Aleksandr Aleksandrowitsch Fridman (also: Alexander Friedmann) Date Unknown date Source
qeyri-stasionar kainat təzəriyyəsinin banisi Aleksandr Fridmanın imzası. Source Image:AleksandrFridman.png Author AleksandrFridman Permission (Reusing this file)
DescriptionAleksandrFridman cropped.png English: Russian mathematician and physicist Alexander Friedmann Date Unknown date Source Cropped from File:Aleksandr_Fridman