Ziółkowski P. The project “Regional Network of Universities of the Third Age University of Economy in Bydgoszcz opportunity for the development of cultural and artistic seniors”. RA [Internet]. 14 maj 2014 [cytowane 8 maj 2024];20:445-6. Dostępne na: https://apcz.umk.pl/RA/article/view/RA.2013.035