"Slavonic Christen Kold" or five principles of Ignacy Solarz's educational concept
|Book||Lifelong learning : continuous education for sustainable development : proceedings of the 10th Anniversary International Cooperation, vol. 10, pt. 1, 2012, Leningrad State University named after A. S. Pushkin, ISBN 978-5-8290-1161-1|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.