@article{ITA_1993__27_1_1_0,
     author = {Higgins, J. and Campbell, D.},
     title = {Prescribed ultrametrics},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {1--5},
     publisher = {EDP-Sciences},
     volume = {27},
     number = {1},
     year = {1993},
     mrnumber = {1213417},
     zbl = {0786.54031},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1993__27_1_1_0/}
}