Liebling, Thomas M. <br/><br/>
Graphentheorie in Planungs- und Tourenproblemen am Beispiel des städtischen Strassendienstes/ 
[von] Thomas M. Liebling. 
 - Berlin:  New York:  Springer-Verlag,  1970. 
 - ix, 116, [2] p.:  illus., maps.,  26 cm. 
 - Lecture notes in operations research and mathematical systems  21 .
<br/><br/> Introduction also in English. 
<br/><br/>Bibliography: p. [118] 
<br/><br/><label>LCCN: </label>70113432 
<br/><br/><label>Nat. Bib. No.: </label>GDB*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graph theory.<br/>Street cleaning--Switzerland--Zurich.