Gray
Robert
Auxiliary vertical control as used in Pat-M
1981
Not available for use outside of the University of New Brunswick
Fredericton
Engineering
Senior Report
electronic
Gray, Robert W (1981). Auxiliary vertical control as used in Pat-M . (Engineering Senior Report no. TR-342-SU 1981). Fredericton : University of New Brunswick, Dept. of Geodesy and Geomatics Engineering TR-342-SU 1981 1882/16682