Katona, Gyula O. H., Schrijver, Alexander, Szőnyi, Tamás, Sági, Gábor, SpringerLink (Online service)
János Bolyai Mathematical Society and Springer-Verlag
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Aigner, Martin, Ziegler, Günter M., Quarteroni, Alfio, SpringerLink (Online service)
Springer-Verlag Italia, Milano
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Drmota, Michael, SpringerLink (Online service)
Springer Vienna
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Kotsireas, Ilias S., Zima, Eugene V., SpringerLink (Online service)
Springer Berlin Heidelberg : Imprint: Springer
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Pinsky, Ross G., SpringerLink (Online service)
Springer International Publishing : Imprint: Springer
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Vershik, Anatoly M., Yakubovich, Yuri, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Grötschel, Martin, Katona, Gyula O. H., Sági, Gábor, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Guionnet, Alice, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Golumbic, Martin Charles, Hartman, Irith Ben-Arroyo, SpringerLink (Online service)
Springer Science + Business Media, Inc.
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Aigner, Martin, SpringerLink (Online service)
Springer-Verlag GmbH.
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Lovász, László, Ruzsa, Imre Z., Sós, Vera T., SpringerLink (Online service)
Springer Berlin Heidelberg : Imprint: Springer
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Dehmer, Matthias, SpringerLink (Online service)
Springer Science+Business Media, LLC
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