S.A. Stout, W. Spackman, J.J. Boon, P.G. Kistemaker and D.F. Bensley, Correlations between the microscopic and chemical changes in wood during peatification and early coalification: a canonical variant study, Int. J. Coal Geol. 13, (1989)
H.J. Bakker, P.C.M. Planken, L.K. Kuipers and A. Lagendijk, Simultaneous phase matching of three second-order nonlinear optical processes in LiNbO3, Opt. Commun. 73, 398-402 (1989)
P.J. van den Hoek, A.W. Kleyn and E.J. Baerends, What is the origin of the repulsive wall in atom-atom potentials, Comments At. Mol. Phys. 23, 93-110 (1989)
H.C. Pan, P.H.F. Reijnen, T.C.M. Horn and A.W. Kleyn, Harpooning in scattering of O2+ from Ag(111): Dependence on initial beam energy and direction, Radiat. Eff. Defects Solids 109, 41-46 (1989)
C.F.A. van Os, A.W. Kleyn, L.M. Lea, A.J.T. Holmes and P.W. van Amersfoort, Transport of negative ions produced at a barium surface located wihtin a multicusp ion source, Rev. Sci. Instrum. 60, 539-546 (1989)
H.L. Fredrickson, J.W. de Leeuw, A.C. Tas, J. van der Greef, G.F. La Vos and J.J. Boon, Fast atom bombardment (tandem) mass spectrometric analysis of intact polar ether lipids extractable from the extremely halophili c archaebacterium halobacterium cutirubrum, Biomed. Environ. Mass Spectrom. 18, 96-105 (1989)
