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R.M.A. Heeren, J.J. Boon, P. Noble and J. Wadum: Integrating imaging FTIR and secondary ion mass spectrometry for the analysis of embedded paint cross-sectionsIn: 12th Triennial Meeting Lyon 29 August - 3 September 1999 ; Vol. 1, ICOM-CC ICOM Committee for Conservation, James, 1999. - pp. 228-233
J.J. Boon and G.A. van der Doelen: Advances in the current understanding of aged dammar and mastic triterpenoid varnishes on the molecular levelIn: Firnis : Material - Ãsthetik - Geschichte, Internationales Kolloquium, Braunschweig, 15.-17. Juni 1998 = Varnish : Material - Aesthetics - History, International Colloquium, Braunschweig, 15-17 June 1998 /ed. A. Harmssen, Herzog-Anton-Ulrich-Museum, 1999. - pp. 92-103
J.D.J. van den Berg, K.-J. van den Berg and J.J. Boon: Chemical changes in curing and ageing oil paintsIn: 12th Triennial Meeting Lyon 29 August - 3 September 1999 ; Vol. 1, ICOM-CC ICOM Committee for Conservation, James, 1999. - pp. 248-253
R.R. Jones, J.H. Townsend and J.J. Boon: A technical assessment of eight portraits by Reynolds being considered for conservation treatmentIn: 12th Triennial Meeting Lyon 29 August - 3 September 1999 ; Vol. 1, ICOM-CC ICOM Committee for Conservation, James, 1999. - pp. 375-380
L. Carlyle, N.E. Binnie, G.A. van der Doelen, J.J. Boon, B. McLean and A. Ruggles: Traditional painting varnishes project: preliminary report on natural and artificial aging and a note on the preparation of cross-sectionsIn: Firnis : Material - Ãsthetik - Geschichte, Internationales Kolloquium, Braunschweig, 15.-17. Juni 1998 = Varnish : Material - Aesthetics - History, International Colloquium, Braunschweig, 15-17 June 1998 /ed. A. Harmssen, Herzog-Anton-Ulrich-Museum, 1999. - pp. 110-127
N. Wyplosz, P. Noble, J. Wadum, S. Bryan, A. Belu, J.J. Boon and R.M.A. Heeren: MS/MS Analysis of flavonoids by laser desorption and ionization - ion trap mass spectrometryIn: Proceedings of the 47th ASMS conference on Mass Spectrometry and Allied Topics, Dallas, Texas, June 13-17, 1999, ASMS, 1999. - pp. 982-983
R.M.A. Heeren, S. Koster, L. Drahos and K. Vékey: Determination of collisional energy transfer efficiency by FTICRMS with a novel pump-probe techniqueIn: Proceedings of the 47th ASMS conference on Mass Spectrometry and Allied Topics, Dallas, Texas, June 13-17, 1999, ASMS, 1999. - pp. 1863-1864
L.D. Noordam: Time-resolved photoelectron emission from Rydberg atomsIn: Resonance Ionization Spectroscopy : Ninth International Symposium, Manchester, United Kingdom June 1998 /ed. J.C. Vickerman, I. Lyon, N.P. Lockyer and J.E. Parks, AIP, 1998. - pp. 95-102
B. Goddard, H.J. Hopman and J.N. Tan: The influence of preparation methodology on high voltage behaviour of alumina insulators in vacuumIn: Discharges and Electrical Insulation in Vacuum : Proceedings of the XVIIIth International Symposium, 17.-21. Aug. 1998, Eindhoven, vol. 2, New York: IEEE, 1998. - pp. 735-738