On children's quantitative concept of rational number: construct and estimate the sum
Behr, Merlyn J. ; Wachsmuth, Ipke ; Post, Thomas R. ; Bergeron, Jacques C. (Hrsg.) ; Herscovic, Nicolas (Hrsg.)In: Proceedings of the fifth annual meeting: Montréal Sept. 29 - Oct. 1, 1983 = actes de la cinquième rencontre annuelle / PME-NA, North American Chapter of the International Group for the Psychology of Mathematics Education, Jg. vol. 2, S. 272-2791983Photoelectron spectroscopy of HI and photoemission following narrowband VUV excitation
Böwering, N. ; Huth, T. ; Mank, A. ; Müller, M. ; Schönhense, G. ; Wallenstein, R. ; Heinzmann, Ulrich ; Burke, P. G. (Hrsg.) ; West, J. B. (Hrsg.)1988Photoelectron spin polarization approaching unity: photoionization of TI
Böwering, N. ; Salzmann, M. ; Müller, M. ; Klausing, H.-W. ; Heinzmann, UlrichIn: Physica Scripta, Jg. 41 H. 4, S. 429-4321990A pyrolysis mechanism for ammonia
Davidson, David F. ; Kohse-Höinghaus, Katharina ; Chang, Albert Y. ; Hanson, Ronald K.In: International Journal of Chemical Kinetics, Jg. 22 H. 5, S. fmi ff.1990Photoelectron emission from HI using narrow-band, polarized, coherent VUV-radiation
Huth, T. ; Mank, A. ; Böwering, N. ; Schönhense, G. ; Wallenstein, R. ; Heinzmann, Ulrich ; Geddes, J. (Hrsg.)1987Prevention and intervention in the analytical perspective of guidance
Kaufmann, Franz-Xaver ; Hurrelmann, Klaus (Hrsg.) ; Kaufmann, Franz-Xaver (Hrsg.) ; Lösel, F. (Hrsg.)In: Social intervention: potential and constraints, Jg. 1, S. 3-201987Photoelectron angular distributions from laser-excited aligned Yb atoms ionized by vacuum ultraviolet radiation
Kerling, C. ; Böwering, N. ; Heinzmann, UlrichIn: Journal of Physics B: Atomic, Molecular and Optical Physics, Jg. 23 H. 20, S. L629-L6351990Photoelectron dynamics of HI ionized by coherent VUV radiation
Mank, A. ; Drescher, Markus ; Huth-Fehre, T. ; Schönhense, G. ; Böwering, N. ; Heinzmann, UlrichIn: Journal of Electron Spectroscopy and Related Phenomena, Jg. 52, S. 661-6701990Photoelectron spin-polarisation spectroscopy in the 5s5p2-autoionisation region of indium
Müller, M. ; Böwering, N. ; Schäfers, F. ; Heinzmann, UlrichIn: Physica Scripta, Jg. 41 H. 1, S. 42-461990Percolation threshold and mean grain size in AlxSi1-x thin films
Reiss, Günter ; Vancea, Johann ; Hoffmann, HorstIn: Journal of Physics, C: Solid State Physics, Jg. 18 H. 21, S. L657-L6601985Photoelectron Polarization in Hg 6s-2 Subshell Ionization with Unpolarized Light: New Aspect of the Fano Effect
Schönhense, G. ; Heinzmann, Ulrich ; Kessler, J. ; Cherepkov, N. A.In: Physical review letters, Jg. 48 H. 9, S. 603-6061982