This article contains public domain material from NASA Goddard Flight Center web site.Planetary Laser Altimetry(General description). NASA Goddard Space Flight Center. [February 14, 2011]. (原始内容存档于2021-03-18).
Planetary Laser Altimetry MOLA(General description online). NASA Goddard Space Flight Center. [February 14, 2011]. (原始内容存档于2021-08-06).
This article contains public domain material from NASA Goddard Flight Center web site.Planetary Laser Altimetry(General description). NASA Goddard Space Flight Center. [February 14, 2011]. (原始内容存档于2021-03-18).
Planetary Laser Altimetry MOLA(General description online). NASA Goddard Space Flight Center. [February 14, 2011]. (原始内容存档于2021-08-06).