Watkins, Michael Mullen (1990). Tracking station coordinates and their temporal evolution as determined from laser ranging to the Lageos satellite (Ph.D. thesis). The University of Texas at Austin. OCLC27097643. ProQuest303865022.
utexas.edu
ae.utexas.edu
"Michael M. Watkins". Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin. Archived from the original on 2016-07-09. Retrieved 13 August 2017.
"Michael M. Watkins". Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin. Archived from the original on 2016-07-09. Retrieved 13 August 2017.
Watkins, Michael Mullen (1990). Tracking station coordinates and their temporal evolution as determined from laser ranging to the Lageos satellite (Ph.D. thesis). The University of Texas at Austin. OCLC27097643. ProQuest303865022.