Best, Eike. <br/><br/>
Nonsequential processes  a petri net view 
by Eike Best, Cesar C. Fernandez. 
 - Berlin  Springer Verlag  1988 
 - 112p  bibl p.99-104 
 - EATCS monographs on theoretical computer science  v.13 .
<br/><br/><label>ISBN: </label>3540190309 
<br/><br/><label>Dewey Class. No.: </label>511.3  / N884