1. Adams , G. F. P. L. Jackson J. S. Zelenka L. J. Porcello W. D. Hall E. B. Champagne W. G. Carrara Image and holographic processing, digitization and special investigations of Apollo lunar sounder data Ann Arbor 1974
2. Boyce , J. M. A. L. Dial Jr. Stratigraphic studies, C, Relative ages of some near-side mare units based on Apollo 17 metric photographs, NASA Spec. Publ. 330 29-26 29-28 1973
3. Elevation profiles of the moon;Brown;Geochim. Cosmochim. Acta,1974
4. Howard , K. A. M. H. Carr W. R. Muehlberger Stratigraphic studies, A, Basalt stratigraphy of southern Mare Serenitatis, NASA Spec. Publ. 330 29-1 29-12 1973