39551757
9783540025801
W. Becker is the author of 'Tables of Ordinary and Extraordinary Refractive Indices, Group Refractive Indices and h'o,x(f)-Curves for Standard Ionospheric Layer Models (Mitteilungen aus dem Max-Planck-Institut fr Aeronomie)', published 1960 under ISBN 9783540025801 and ISBN 3540025804.
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