occasional papers From pinheads to hanging bowls : the identification, deterioration and conservation of applied enamel and glass decoration on archeological artefacts / ed. Louise Bacon [and] … Zijde en kunstzijde / [red. A.J. de Graaf ... et al.] Modern art: who cares? : an interdisciplinary research project and an international symposium on the conservation of modern and contemporary art / eds. IJsbrand Hummelen …