Flare waves observed in Helium I 10 830 Å - A link between Hα Moreton and EIT waves B. Vršnak, A. Warmuth, R. Brajša and A. Hanslmeier A&A, 394 1 (2002) 299-310 Published online: 04 October 2002 DOI: 10.1051/0004-6361:20021121