%0 Journal Article %A Higgins, J. %A Campbell, D. %T Prescribed ultrametrics %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1993 %P 1-5 %V 27 %N 1 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1993__27_1_1_0/ %G en %F ITA_1993__27_1_1_0