Basilevsky, Alexander T.; James W. Head (December 1995). «Regional and global stratigraphy of Venus: a preliminary assessment and implications for the geological history of Venus». Planetary and Space Science. 12 43 (12): 1523-1553. Bibcode:1995P&SS...43.1523B. doi:10.1016/0032-0633(95)00070-4.
harvard.edu
adsabs.harvard.edu
Basilevsky, Alexander T.; James W. Head (December 1995). «Regional and global stratigraphy of Venus: a preliminary assessment and implications for the geological history of Venus». Planetary and Space Science. 12 43 (12): 1523-1553. Bibcode:1995P&SS...43.1523B. doi:10.1016/0032-0633(95)00070-4.