@Article{8426,
journal="Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery",
issn="1731-5530",
volume="4",
number="2",
year="2007",
title="Kalendarium",
author="url="https://www.termedia.pl/Kalendarium,40,8426,1,1.html"
}