Ejsmont, Aneta, and Edward F. Szczepanik. “The Deliveries Chain and Value Added in Context of Coopetition Between the Service and Industrial Companies in Poland and UE”. European Journal of Economics and Business Studies 2, no. 3 (December 1, 2016): 186–199. Accessed November 30, 2025. https://revistia.com/index.php/ejes/article/view/2939.