<a href="https://en.wikipedia.org/wiki/Jerzy_Kukuczka" class="extiw" title="w:Jerzy Kukuczka">Jerzy Kukuczka</a> and <a href="https://en.wikipedia.org/wiki/Andrzej_Czok" class="extiw" title="w:Andrzej Czok">Andrzej Czok</a> during 1980 spring expedition to Mount Everest. On May 19, 1980 they climb the mountain through new route.
<a href="https://en.wikipedia.org/wiki/pl:Andrzej_Heinrich" class="extiw" title="w:pl:Andrzej Heinrich">Andrzej Heinrich</a>
<cite class="book" style="font-style:normal"><a href="https://en.wikipedia.org/wiki/pl:Zbigniew_Kowalewski" class="extiw" title="w:pl:Zbigniew Kowalewski">Zbigniew Kowalewski</a>; <a href="https://en.wikipedia.org/wiki/pl:Andrzej_Paczkowski" class="extiw" title="w:pl:Andrzej Paczkowski">Andrzej Paczkowski</a> (1986)      <i> <a href="https://en.wikipedia.org/wiki/pl:Mount_Everest" class="extiw" title="w:pl:Mount Everest">Mount Everest</a> - Dzieje zdobycia i Podboju</i>, <a href="https://en.wikipedia.org/wiki/en:Warsaw" class="extiw" title="w:en:Warsaw"><span title="capital and largest city of Poland">Warsaw</span></a>:  Wydawnictwo Sport i Turystyka, pp. 178  <small><a href="//commons.wikimedia.org/wiki/Special:BookSources/83-217-2527-9" title="Special:BookSources/83-217-2527-9">ISBN 83-217-2527-9</a></small></cite>