Gaposchkin, E M & Lambeck, K books & textbook
EARTH'S GRAVITY FIELD TO THE SIXTEENTH DEGREE AND STATION COORDINATES FROM SATELLITE AND TERRESTRIAL DATA (Pamphlet)
Gaposchkin, E.M. & Lambeck, K.
J Geophysical Research /1971T Pamphlet
1969 Smithsonian Standard Earth [II]. Smithsonian Astrophysical Observatory Report 315
Smithsonian Institution /1970T Paperback
