V. Mazurov, и E. Khukhro. (2014)cite arxiv:1401.0300Comment: A few new solutions and references have been added. Preparation of the next 19th issue is underway, new problems are welcome, as well as comments on previous editions.
P. Nagy, P. Surján, и Á. Szabados. Theoretical Chemistry Accounts: Theory, Computation, and Modeling (Theoretica Chimica Acta), 131 (2):
1-6(февраля 2012)
G. Davis, и M. Mcgowen. proceedings of the Annual Meeting of the 26th Annual Meeting of the International Group for the Psychology of Mathematics Education (PME), 2, стр. 273-280. Norwich, UK, University of Norwich, (июля 2002)
C. Bergsten. Proceedings of the 30th Conference of the International Group for the Psychology of Mathematics Education, 2, стр. 153-160. Prague, Czech Republic July 16-21, (2006)