International Council on Monuments and Sites. General Assembly (9.: 1990: Lausanne, Švýcarsko): 9th general assembly and international symposium "ICOMOS, a quarter of a century, achievements and future prospects" : Lausanne, Switzerland, October 6th - 11th, 1990 : symposium papers
9th general assembly and international symposium "ICOMOS, a quarter of a century, achievements and future prospects" : Lausanne, Switzerland, October 6th - 11th, 1990 : symposium papers International Council on Monuments and Sites. General Assembly (9.: 1990: Lausanne, Švýcarsko)