Pyka A, Błach J. Business-to-business platforms as a part of e-commerce – possibilities of practical use by Polish enterprises. CJFA [Internet]. 2014 Nov. 21 [cited 2025 Jan. 25];3(2):137-49. Available from: https://apcz.umk.pl/CJFA/article/view/CJFA.2014.023