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)
K. Konuma, J. Vrijmoeth, P.M. Zagwijn, J.W.M. Frenken, E. Vlieg and J.F. van der Veen, Formation of epitaxial b-FeSi2 films on Si(001) as studied by medium-energy ion scattering, J. Appl. Phys. 73, 1104-1109 (1993)
