“The Labour Code Law of 26 June 1974 as ammended in 1975, 1981, 1982, 1985, 1986, 1987, 1988, 1989 and 1990 (excerpts). Part II. Individual Employment Relationship” (1990) Contemporary Central & East European Law, (2(86), pp. 77–91. Available at: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1285 (Accessed: 6 October 2025).