00308 a2200109 4500 ger Koller, Manfred 271 M. Koller 1977 Vol. 1, 1977, pp. 17-30. Arbeitsblt̃ter fur Restauratoren 5281 5281 0 0 ddc 0 0 FPDI FPDI PERSO 2026-07-08 T1113 0 DD [Technologie] 2026-07-08 08:00:29 2026-07-08 ARTI