Buttazzo, G., Ferone, V., & Kawohl, B. (1993). Minimum problems over sets of concave functions and related questions. Preprint / Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, IWR.
Chicago Style (17th ed.) CitationButtazzo, Giuseppe, Vincenzo Ferone, and Bernhard Kawohl. "Minimum Problems over Sets of Concave Functions and Related Questions." Preprint / Interdisziplinäres Zentrum Für Wissenschaftliches Rechnen, IWR 1993.
MLA (9th ed.) CitationButtazzo, Giuseppe, et al. "Minimum Problems over Sets of Concave Functions and Related Questions." Preprint / Interdisziplinäres Zentrum Für Wissenschaftliches Rechnen, IWR, 1993.
Warning: These citations may not always be 100% accurate.