Biersmann, Wolfgang Peacekeeping principles in a civil war-like conflict windows of opportunity and realistic options in former Yugoslavia 1991-1993-1995 / Wolfgang Biersmann & Martin Vadset - Oslo : NUPI , 1995 - 59p. : ill. ; 32 cm. - NUPI Working paper No. 563 . Includes bibliographical references and index. Subjects--Topical Terms: Peace keepingCivil warConflicts Gov. Doc. Class. No.: NO NUPI WP-563