"IAkovlevich" . "I︠A︡kovlevich"@en . . . "Petr"@en . "Petr I︠A︡kovlevich Egorov" . "Egorov"@en . "Egorov, P. I︠A︡. (Petr I︠A︡kovlevich)" . "P. I︠A︡ Egorov"@en-US . "Petr I︠A︡kovlevich Egorov"@en . "Petr IAkovlevich Egorov" . . "Petr I︠A︡kovlevich" . . .