Wind modelling of very massive stars up to 300 solar masses Jorick S. Vink, L. E. Muijres, B. Anthonisse, A. de Koter, G. Gräfener and N. Langer A&A, 531 (2011) A132 Published online: 30 June 2011 DOI: 10.1051/0004-6361/201116614