@Article{18020,
journal="Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery",
issn="1731-5530",
volume="8",
number="4",
year="2011",
title="Kalendarium",
author="pages="578--578",
url="https://www.termedia.pl/Kalendarium,40,18020,1,1.html"
}