@article{RO_1993__27_2_153_0,
     author = {Michael, David J. and Kamburowski, Jerzy},
     title = {On the minimum dummy-arc problem},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {153--168},
     publisher = {EDP-Sciences},
     volume = {27},
     number = {2},
     year = {1993},
     mrnumber = {1222385},
     zbl = {0774.90047},
     language = {en},
     url = {http://www.numdam.org/item/RO_1993__27_2_153_0/}
}