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by Sackur, Prof. W., Engesser, Fr, Rehbock, Th, Probst, E.
Published 1921
Subjects:
“...Science education...”Published 1921
Springer Berlin Heidelberg
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by Butenandt, A., Debye, P., Drescher-Kaden, F. K., Ficker, H. v
Published 1941
Subjects:
“...Science education...”Published 1941
Springer Berlin Heidelberg