Fájl:A B Alexandrov.jpgAlexander Vasilyevich Alexandrov (1883–1946), who wrote the national anthem of the Soviet Union, and who started the Alexandrov Ensemble (Red Army Choir)
Fájl:Topology of the web graph.pdffollowing conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any