H.L.C. Meuzelaar, P.G. Kistemaker, B.R. Nagar and E.S. Waight, Studies on the structure and origin of soil humic acids by Curie point pyrolysis in direct conbination with low-voltage mass spectrometry, Plant Soil 43, 681-685 (1975)
C.B.W. Kerkdijk, C.M. Smits, D.R. Olander and F.W. Saris, The shape of doppler-broadened spectral lines produced by light atom reflection from metals: II. Experimental - protons on copper, Surf. Sci. 49, 45-60 (1975)
C.I.M. Beenakker, P.J.F. Verbeek and F.J. de Heer, The intensity distribution in the CH(A2D-X2P) spectrum produced by electron impact on acetylene, J. Quant. Spectrosc. Radiat. Transfer 15, (1975)
B.R. Nagar, E.S. Waight, H.L.C. Meuzelaar and P.G. Kistemaker, Studies on the structure and origin of soil humic acids by Curie Point pyrolysis in direct combination with low-voltage mass spectrometry, Plant Soil 43, 681-685 (1975)
