Kaula, William M. <br/>
       Analysis of gravitational and geometric aspects of geodetic utilization of satellites [NASA TN D-572] 
 / William M. Kaula 
 .- Washington D. C.: National Aeronautics and Space Administration,  1961 
 .- 39p. 
.- ( National Aeronautics and Space Administration NASA Technical Note   
<br/>Bound vol. contains D 572-580 
<br/><u>Subject Headings:</u> <br/>Satellites;