KVETKO, Igor. The revitalization of cultivation and using the sweet cherries (Cerasus Mill.) in original ecosystems. In Traditional agroecosystems : 1st International conference and satellite workshops : books of abstracts, September 16-21, 2005, Nitra, Slovak Republic. Nitra : Slovenská poľnohospodárska univerzita, 2005. ISBN 80-8069-579-2. , s. 18.