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by Bruggencate, P. ten, Freundlich, E. F., Grotrian, W., Kienle, H.
Published 1934
Published 1934
Springer Berlin Heidelberg
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by Burbidge, Geoffrey R., Kahn, F.D., Erbert, R., Hoerner, S.v
Published 1960
Published 1960
Springer Berlin Heidelberg