Three utilities problem: Difference between revisions

Content deleted Content added
Replace primary source using "Thomsen graph" name with textbook source stating it as the name
References: Béla Bollobás
Line 77:
 
<ref name=bollobas>{{citation
| last = Bollobás | first = Béla | author-link = Béla Bollobás
| doi = 10.1007/978-1-4612-0619-4
| isbn = 0-387-98488-7