@misc{Voß_Stefan_Extensions,
 author={Voß, Stefan and Fink, Andreas and Gentili, Monica and Cerulli, Raffaele},
 howpublished={online},
 publisher={Instytut Łączności - Państwowy Instytut Badawczy, Warszawa},
 language={ang},
 title={Extensions of the minimum labelling spanning tree problem, Journal of Telecommunications and Information Technology, 2006, nr 4},
 type={artykuł},
 keywords={metaheuristics, network design, spanning trees, labelling trees, Steiner tree problem},
}