NASA  / TN D-3721 <br/>
Musen, Peter <br/>
       On some possible modifications in brouwer's theory of the general perturbations in rectangular coordinates 
 / Peter Musen 
 .- Washington : NASA,  1966 
 .- 18p. 
<br/>National Aeronautics and Space Administration [NASA]<br/> 
<br/><u>Subject Headings:</u> <br/>Rectangular;
<br><U>Copy Details:</u><br> Acc. No.: <b></b>, Full Call No.: NASA TN D-3721,   Item type:  Technical Report , Location: Reference, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>