Vladimirova, K., & Atanasova, M. (2008). Flexible Forms of Employment in Small and Medium-Size Enterprises: Conditions and Opportunities for Development. Kеy findings of research into the application of flexible forms of employment in small and medium-size enterprises in Bulgaria. Yearbook of UNWE, 1, 7-46. https://doi.org/10.37075/YB.2008.1.01