@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}, zbl = {0786.54031}, mrnumber = {1213417}, language = {en}, url = {http://www.numdam.org/item/ITA_1993__27_1_1_0/} }