"Aleksandr" . "Petrov, A. A. (Aleksandr Aleksandrovich)" . "kandidat fiziko-matematicheskikh nauk Aleksandr Aleksandrovich Petrov" . "Petrov" . . "A." . "Petrov, A. A. kandidat fiziko-matematicheskikh nauk" . "Aleksandr Aleksandrovič Petrov"@pl-PL . "A." . "A. A." . . . "A. A. Petrov" . "Aleksandrovich" . "Aleksandrovič" . "A. A. Petrov"@hr-HR . . . .