Copyright © 2013 Eötvös Loránd University
This book is freely available for research and educational purposes. Reproduction in any form is prohibited without written permission of the owner.
Made in the project entitled "E-learning scientific content development in ELTE TTK" with number TÁMOP-4.1.2.A/1-11/1-2011-0073. Consortium leader: Eötvös Loránd University, Consortium Members: ELTE Faculties of Science Student Foundation, ITStudy Hungary Ltd.