info:oai:pure.iiasa.ac.at:4258info:ofi/fmt:xml:xsd:journalNovakA.Novak, A.KaitalaV.Kaitala, V.FeichtingerG.Feichtinger, G.142February 19951432-2994Resource leasing and optimal periodic capital investmentsZeitschrift fuer Operations Research47-67article