President of Austria (1986–1992); Secretary-General of the United Nations (1972–1981)
A preliminary search indicated that this author's works are generally still protected under copyright law, and cannot be hosted on Wikisource. However, some works may be in the public domain or under free licensing terms. Read more here.
Some or all works by this author are in the public domain in the United States because they are works of the United States federal government (see 17 U.S.C. 105).