Group picture before the Statue of Kala Bhairava with Tibor Sekelj, Founding assembly of Esperanto-Group in Kathmandu, 1957, Österreichische Nationalbibliothek ÖNB 8092775
Tibor Sekelj on the top of the Mount Kosciuszko, 1970 before the peak cross and Esperanto flag in hand, Österreichische Nationalbibliothek, ÖNB 7619469
50th PEN-Congress, Lugano 1987 Leon Maurice Anoma Kanie, Ivorian writer and ambassador, at table with the world traveler, investigator and Journalist Tibor Sekelj, defender of recognition of Esperanto as literary language, Österreichische Nationalbibliothek, ÖNB 7920556
Gravestone of Tibor Sekelj, Subotica 1988, Österreichische Nationalbibliothek ÖNB 7177179
Radio-interview with Stipan Milodanoviĉ: « Ja sam učio oko 25 jezika. Mnoge sam zaboravio jer ih nisam više koristio. Uspeo sam da zadržim kao svoju trajnu svojinu 9 jezika koje i sada govorim Tih 9 jezika nisu dovoljni za ceo svet, ali jedan dobar deo sveta mogu da obidjem.» http://www.ipernity.com/doc/fulmobojana/7066327/