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The free core nutation period stays between 431 and 434 sidereal days
Roosbeek, F., Defraigne, P., Feissel, M., Dehant, V.Volume:
26
Language:
english
Journal:
Geophysical Research Letters
DOI:
10.1029/1998gl900225
Date:
January, 1999
File:
PDF, 409 KB
english, 1999