Lie, Sophus,  1842-1899. <br/><br/>
Sophus Lie's 1884 differential invariant paper / 
translated by M. Ackermann ; comments and additional material by Robert Hermann. 
 - Brookline, MA. :  Math Sci Press,  c1976. 
 - viii, 273 p. ;  21 cm. 
 - Lie groups ; v. 3 .
<br/><br/>Bibliography: p. 271-273. 
<br/><br/><label>ISBN: </label>0915692139 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential invariants.
<br/><br/><label>Dewey Class. No.: </label>512.22 LIE/ACK