On the origin of solar wind. Alfvén waves induced jump of coronal temperature T. M. Mishonov, M. V. Stoev and Y. G. Maneva Eur. Phys. J. D, 44 3 (2007) 533-536 Published online: 29 June 2007 DOI: 10.1140/epjd/e2007-00222-6