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D.J. O'Connor, E.R. Wouters, A.W. Denier van der Gon, J.F. van der Veen, P.M. Zagwijn and J.W.M. Frenken, The initial stages of the oxidation of Al(111). I, Surf. Sci. 296, 131-140 (1993)
W.M.G.M. van Loon, J.J. Boon, R.J. de Jong and B. de Groot, Isolation of macromolecular chlorolignosulfonic acids and lignosulfonic acids from pulp mill effluents and the river Rhine using XAD-8 macroporous resin and ultrafiltration, Environ. Sci. Technol. 27, 332-342 (1993)
S. Lombardo, S.U. Campisano, G.N. van den Hoven, A. Cacciato and A. Polman, Room-temperature luminescence from Er-implanted semi-insulating polycrystalline silicon, Appl. Phys. Lett. 63, 1942-1944 (1993)
R. Hoekstra, R.E. Olson, H.O. Folkerts, E. Wolfrum, J. Pascale, F.J. de Heer, R. Morgenstern and H. Winter, Electron capture from Li by B5+, N5+ and Be4+ ions, J. Phys. B: At., Mol. Opt. Phys. 26, 2029-2040 (1993)
A.M.C. Emons, Marcel M. Mulder and H. Kieft, Pyrolysis mass spectrometry of developmental stages of maize somatic embryos, Acta Bot. Neerl. 42, 319-339 (1993)
M.D. Davidson, J. Wals, H.G. Muller and H.B. van Linden van den Heuvell, Observation of full ponderomotive shift for the photodetachment threshold in a strong laser field, Phys. Rev. Lett. 71, 2192-2195 (1993)
G.A. Logan, J.J. Boon and G. Eglinton, Structural biopolymer preservation in Miocene leaf fossils from the Clarkia site, Northern Idaho, PNAS 90, 2246-2250 (1993)