3 http://hdl.handle.net/10338.dmlcz/136239 3 News and Notices http://hdl.handle.net/10338.dmlcz/136248 News and Notices A generalization of the individual ergodic theorem http://hdl.handle.net/10338.dmlcz/132003 A generalization of the individual ergodic theorem Über die Untermengen der Lösungen der Gleichung $x'''+a(t)x"+b(t)x'+c(t)x= 0 c(t)\geq 0$ http://hdl.handle.net/10338.dmlcz/136247 Über die Untermengen der Lösungen der Gleichung $x'''+a(t)x"+b(t)x'+c(t)x= 0 c(t)\geq 0$ Some counterexamples in $p$-adic analysis http://hdl.handle.net/10338.dmlcz/132119 Some counterexamples in $p$-adic analysis