54599. Rate of paper degradation : the predictive value of artificial aging tests / Henk J. Porck. - Amsterdam : European Commission on Preservation and Access, 2000. 40 p.: 30 cm. - , ISBN: 90-6984-306-4 PK : DK2001-1

54599. Rate of paper degradation : the predictive value of artificial aging tests / Henk J. Porck. - Amsterdam : European Commission on Preservation and Access, 2000. 40 p.: 30 cm. - , ISBN: 90-6984-306-4 PK : DK2001-1