S. Koster, M.C. Duursma, J.J. Boon, M.W.F. Nielen, C.G. de Koster, C. Wesdemiotis and R.M.A. Heeren: Characterisation of co-polyesters with electrospray ionisation FTICR-MSIn: Proceedings of the 47th ASMS conference on Mass Spectrometry and Allied Topics, Dallas, Texas, June 13-17, 1999, ASMS, 1999. - pp. 984-985
R. Lang, A.N. Maurellis, W.J. van der Zande, I. Aben, P. Levelt, H. Naus and W. Ubachs: DOAS-OCM retrieval of water vapor from GOME and new CRD spectroscopyIn: Proceedings of the European Space Agency Symposium on Measurements from Space (ESAMS), held on 18-22 January 1999 ; vol. 1, European Space Agency, 1999. - pp. 391-394
J.J. Boon, J.H. Townsend and R.R. Jones: Direct temperature resolved mass spectrometric studies of paintings by Sir Joshua Reynolds (1723-1792)In: Proceedings of the 47th ASMS conference on Mass Spectrometry and Allied Topics, Dallas, Texas, June 13-17, 1999 [published on CD-ROM only], ASMS, 1999. - pp. 986-987
D.C. Papageorgopoulos, B. Riedm, B. Berenbak and A.W. Kleyn: A molecular beam study of the interaction of CO with clean and hydrogen covered Ru(0001)In: 14th Greek Conference of Solid State Physics, Ioannina 15-18 September 1998 : Proceedings, University of Ioannina, 1999. - pp. 237-240
D. Frenkel and P.R. ten Wolde: From Van der Waals to protein crystallisationIn: Structure and Dynamics of Materials in the Mesoscopic Domain : Proceedings of the Fourth Royal Society - Unilever Indo-UK Forum in Materials Science and Engineering /ed. M. Lal, R.A. Mashelkar, B.D. Kulkarni and V.N. Naik, ICP, 1999. - pp. 139-149
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