as a member of the serbian academy of sciences and arts (sanu) in 1986, marković, together with vasilije krestić and others, wrote the sanu memorandum, a document that has formulated the central tenets of serbian nationalism. while the document has been viewed in some neighbouring former yugoslav republics as a preparation for full-scale greater serbian expansionism, many serbs considered it a realistic depiction of the serbian position within yugoslav federation.