Gantmacher, F.. <br/><br/>
Lectures in Analytical Mechanics /  

 - 1st ed /  
 - Moscow :   MIR Publishers. 
 - p.264 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B7:112  / L0