@techreport {TR-1980-015,
   type = {Technical Report},
   author = {Andrzej Proskurowski, Maciej Sysko},
   title = {Minimum Dominating Cycles in Outerplanar Graphs},
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = TR-1980-015,
   year = 1980,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/TR-1980-015.pdf}},
}