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1
by Bömer, A., Danckwortt, P. W., Freund, H., Grau, R.
Published 1933
Springer Berlin Heidelberg
Subjects: “...Popular Science, general...”
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2
by Kuczynski, Robert René
Published 1927
J.F. Bergmann-Verlag
Subjects: “...Popular Science, general...”
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3
by Kuczynski, Robert René
Published 1926
J.F. Bergmann-Verlag
Subjects: “...Popular Science, general...”
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4
by Flitsch, Wilhelm
Published 1994
Springer Berlin Heidelberg
Subjects: “...Popular Science, general...”