Pommaret, J. F.,  1945- <br/><br/>
Lie Pseudoggroups and mechanics / 
by J.F.Pommaret 
 - New York :  Gordon and Breach Science Publishers,  1988 
 - ix, 591 p.:  ill. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>2881242138 
<br/><br/><label>LCCN: </label>87-8549 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial.<br/>Lie groups<br/>Psendogroups<br/>Mechanics