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by Kleinpoppen, Hans; Lohmann, Bernd; Grum-grzhimailo, Alexei
by Chaudhry, Afzal; Kleinpoppen, Hans
by Fabian, Derek J.; Kleinpoppen, Hans; Watson, Lewis M.
by Kleinpoppen, H.; Briggs, J. S.; Lutz, Hans
by Briggs, J. S. S.; Kleinpoppen, H.; Lutz, Hans
by Kleinpoppen, Hans; Newell, W. R.
by Beyer, H. J.; Kleinpoppen, Hans
by Lutz, Hans; Briggs, J. S.; Kleinpoppen, B.
by Kleinpoppen, Hans; Lohmann, Bernd; Grum-Grzhimailo, Alexei N.; et al.