@article{article, title = {{WR 20a: A massive cornerstone binary system comprising two extreme early-type stars}}, url = {{}}, year = {{2004}}, month = {{6}}, author = {{Rauw G and De Becker M and Naze Y and Crowther PA and Gosset E and Sana H and van der Hucht KA and Vreux JM and Williams PM}}, doi = {{10.1051/0004-6361:20040150}}, volume = {{420}}, journal = {{ASTRON ASTROPHYS}}, issue = {{2}}, pages = {{L9-L13}}, note = {{Accessed on 2024/12/22}}}