Karlický, M., Bárta, M., Mészárosová, H., Zlobec, P. Time scales of the slowly drifting pulsating structure observed during the April 12, 2001 flare. Astronomy & Astrophysics. 2005, 432(2), 705-712. ISSN 0004-6361. E-ISSN 1432-0746.