Дігтяренко, Г. В. “ESTABLISHING THE CONTENT OF AN EMPLOYEE’S LABOR FUNCTION AS A MANDATORY CONDITION OF THE EMPLOYMENT AGREEMENT”. Scientific Works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law", vol. 4, no. 53, Nov. 2019, pp. 111-7, doi:10.18372/2307-9061.53.14299.