Internationale Leder- und Pergamenttagung = International leather- and parchmentsymposium : vom 8. Mai bis 12. Mai 1989 / ICOM Arbeitsgruppe, leathercraft and related objects Nooit meer vechten? : beschaving, technologie en toepassing van militair geweld / [red.: Jan Schoeman] Symposium on ethnographic and water-logged leather / [ed. P.B. Hallebeek] Symposium Vredesoperaties / [projectgroep: J.C.A.C. de Vogel ... et al.] Conservation of leathercraft and related objects : interim symposium at the Victoria & Albert Museum, London, 24 & 25 June 1992 / eds.: Pieter Hallebeek, …