Photometric observations of Epsilon Aurigae during the eclipse of 2009-2011 - K. Ilkiewicz; P. Wychudzki; C. Galan; M. Gladkowski; P. Dobierski; A. Karska; M. Wiecek; T. Tomov; M. Mikolajewski (Advances in Astronomy and Space Physics, 2013)