Koschorke U. <br/><br/>
Vector fields and other vector bundlemorphisms A singularity approach 
Koschorke U. 
 - Berlin  "Springer-Verlag"  1981 
 - 304 p. 
<br/><br/> Lecture Notes in Maths. Vol. 847 
<br/><br/><label>Dewey Class. No.: </label>512.7