imperfect image : photographs their past, present and future : conference proceedings / The Centre for Photographic Conservation cl-themadag Globes : produktie, conservering, restauratie / [red.: J.A. Mosk ; fotogr.: R.A.J. van der Krogt ... et al.] Collection and community, the benefits of being social : symposium over de sociale taak van musea, Felix Meritis, Amsterdam, 8 februari 1999 / bew. teksten: …