@article{article51a6c618, title = {Discovery of the massive overcontact binary VFTS352: evidence for enhanced internal mixing}, author = {Almeida, L. A and Sana, H and de Mink, S. E and Tramper, F and Soszynski, I and Langer, N and Barbá, R. H and Cantiello, M and Damineli Neto, Augusto and Koter, A. de and García, M and Gräfener, G and Herrero, A and Horvath, I and Maíz-Apellániz, J and Norman, C and Ramírez-Agudelo, O. H and Vink, J. S}, year = {2015}, doi = {10.1088/0004-637X/812/2/102}, journal = {The Astrophysical Journal} }