Ваховский, В. В., & Григорьев, В. В. (2012). CONCEPTUAL APPROACHES TO LABOR RESOURCES IMPROVEMENT AT THE REGIONAL LEVEL (BY THE EXAMPLE OF ULYANOVSK REGION). The Bulletin of the Volga Region Institute of Administration, 31(2), 200-205. https://volga-institute.owebs.ru/article/view/23622