@misc{Kopytko_Bohdan_Recurrence,
 author={Kopytko Bohdan and Zhernovyi Kostiantyn},
 howpublished={online},
 publisher={Wydaw. Politechniki Częstochowskiej},
 language={eng},
 title={Recurrence relations for two-channel closed queueing systems with Erlangian service times},
 type={czasopismo},
 keywords={two-channel closed queueing system, Erlangian service times, fictitious phase method, recurrence relations},
}