Contributions to the method of lie series 

 - Mannheim  Bibliographisches Institute           1967 
 - 265 p.  Includes bibliographical reference and index 
<br/><br/> Bibliography :P.255-259 
<br/><br/><label>Source: </label> Reference  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Elliptic<br/>Equations differentials non Linearis<br/>Mathematics