Kneppers, H. A. W. M. <br/><br/>
The covariant classification of two-dimensional smooth commutative formal groups over an algebraically closed field of positive characteristic/ 
H. A. W. M. Kneppers. 
 - Amsterdam:  Mathematisch Centrum,  1983. 
 - 74 p. ;;  24 cm. 
 - Mathematical Centre tracts;  157. .
<br/><br/> Spine title: Convariant classification of formal groups.  Includes index. 
<br/><br/>Bibliography: p. 73. 
<br/><br/><label>ISBN: </label>9061962528 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Formal groups
<br/><br/><label>Dewey Class. No.: </label>512.2  / K68c