24 http://hdl.handle.net/10338.dmlcz/116830 1974 Book reviews. Proceedings of the Equadiff III http://hdl.handle.net/10338.dmlcz/101282 Book reviews. Proceedings of the Equadiff III Mon, 09 Jun 2008 14:09:59 GMT A general coordinatization principle for projective planes with comparison of Hall and Hughes frames and with examples of generalized oval frames http://hdl.handle.net/10338.dmlcz/101281 A general coordinatization principle for projective planes with comparison of Hall and Hughes frames and with examples of generalized oval frames Mon, 09 Jun 2008 14:09:54 GMT On the spectrum of a nonlinear operator http://hdl.handle.net/10338.dmlcz/101280 On the spectrum of a nonlinear operator Mon, 09 Jun 2008 14:09:49 GMT Ternary rings with zero associated to Desarguesian and Pappian planes http://hdl.handle.net/10338.dmlcz/101279 Ternary rings with zero associated to Desarguesian and Pappian planes Mon, 09 Jun 2008 14:09:44 GMT