@misc{Tikhonenko_Oleg_Classical_2009,
 author={Tikhonenko, Oleg},
 type={artykuł},
 publisher={Wydawnictwo Akademii im. Jana Długosza w Częstochowie},
 title={Classical and non-classical processor sharing systems with non-homogeneous customers},
 address={Częstochowa},
 year={2009},
 language={eng},
}