SSchastʹe--pokori︠a︡tʹ nedraSchastʹe--pokori︠a︡tʹ nedrade I. N. I︠A︡kovlevaMateriasPetroleum workersBiographyPetroleum industry and tradeHistoryEdiciones (1)Schastʹe--pokori︠a︡tʹ nedra (2012)Izdatelʹskai︠a︡ gruppa "Krylʹi︠a︡" · ruso