04 http://hdl.handle.net/10338.dmlcz/127224 1996 The Channel Image http://localhost:8080/retrieve/2249169 http://hdl.handle.net/10338.dmlcz/127224 Errata: Some records on second order differential equations http://hdl.handle.net/10338.dmlcz/120500 Errata: Some records on second order differential equations State hypergroups of automata http://hdl.handle.net/10338.dmlcz/120499 State hypergroups of automata On the minimum distance of ideals in group algebras http://hdl.handle.net/10338.dmlcz/120508 On the minimum distance of ideals in group algebras Knebusch-Milnor exact sequence and parity of class numbers http://hdl.handle.net/10338.dmlcz/120507 Knebusch-Milnor exact sequence and parity of class numbers