Schwarzkopf, O. (1992). Dynamic maintenance of convex polytopes and related structures. Freie Universität Berlin.
Lua i Stíl Chicago (17ú heag.)Schwarzkopf, Otfried. Dynamic Maintenance of Convex Polytopes and Related Structures. Germany: Freie Universität Berlin, 1992.
Lua MLA (8ú heag.)Schwarzkopf, Otfried. Dynamic Maintenance of Convex Polytopes and Related Structures. Freie Universität Berlin, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.