General assembly and international symposium "The heritage and social changes" (11th : 1996 : Sofia, Bulharsko): 11th general assembly and international symposium "The heritage and social changes" = 11e assemblee generale et symposium international "Le patrimoine et les changements sociaux" : symposium papers : 5-9 October 1996, Sofia, Bulgaria
11th general assembly and international symposium "The heritage and social changes" = 11e assemblee generale et symposium international "Le patrimoine et les changements sociaux" : symposium papers : 5-9 October 1996, Sofia, Bulgaria General assembly and international symposium "The heritage and social changes" (11th : 1996 : Sofia, Bulharsko)