Marie Curie, cropped from <a class="mw-selflink selflink">File:Curie-nobel-portrait-2-600.jpg</a>
Fotograv. - Generalstabens Litografiska Anstalt Stockholm
1911
<a rel="nofollow" class="external free" href="http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1911/marie-curie.html">http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1911/marie-curie.html</a>, published in 1912 in Sweden in <a rel="nofollow" class="external text" href="https://archive.org/stream/lesprixnobel1911nobe#page/n71/mode/1up">Les Prix Nobel</a>, p. 64