Alferov B. A. Geological study of Benoevsky oil field. In Russian (ask us if in doubt)/Alferov B. A. Geologicheskoe issledovanie Benoevskogo mestorozhdeniya nefti. Moscow-Len. Geological edition 1931. 68 and 2 sheets of color tables. Stages of development of oil sources in the North Caucasus in the nineteenth century. research of Benoevskaya and Chanta-Argun groups in the post-reform period. State monopoly on oil production and refining in the Chechen Autonomous Region in the North Caucasus. SKUalb46a6d04e2c583fdf.