info:oai:eprints.zu.edu.ua:13382info:ofi/fmt:xml:xsd:journalPogoruіА. А.Pogoruі, А. А.Rodríguez-DagnіnoRamón М.Rodríguez-Dagnіno, Ramón М.4132005One-dimensional semi-Markov evolutions with general Erlang sojourn timesRandom Oper. and Stoch. Equ.399-405article