Moras, M. (2021). 
	The Requirement of Employment under an Employment Relationship in Public Procurement and the Protective Function of the Labour Law. Studia z Zakresu Prawa Pracy i Polityki Społecznej (Studies on Labour Law and Social Policy), 2021, 373-388. doi: https://doi.org/10.4467/25444654SPP.21.028.14270