Gołaś, J. 2025. The problem of double subordination of food-delivery platform workers in Poland as a classification challenge to the Polish labour law system. Z Problematyki Prawa Pracy i Polityki Socjalnej. 23, 6 (Jul. 2025), 1–15. DOI:https://doi.org/10.31261/zpppips.2025.23.10.