StrebkovD., ShevchukA., LukinaA., Melianova E., & Tyulupo A. (2019). Social Factors of Contractor Selection on Freelance Online Marketplace: Study of Contests Using “Big Data”. Journal of Economic Sociology, 20(3), 25-65. https://doi.org/10.17323/1726-3247-2019-3-25-65