study of the effects of iron and copper on the degradation of paper and evaluation of different conservation treatments / H.J. Porck, W. Castelijns environment and deterioration report Adhesive testing at the Canadian Conservation Institute : an evaluation of selected poly(vinyl acetate) and acrylic adhesives / by Jane.L. Down [et al.] Abstracts and Conference Program The Art Institute of Chicago / edited by Harriet K. Stratis and Britt Salvesen Kunstmatige veroudering onder invloed van licht / Judith H. Hofenk de Graaff introductory course in principles of aviation historic preservation and aviation archeology / [instructor Richard E. Gillespie ; executive director TIGHAR