@article{10_4064_cm_66_1_165_173, author = {R. Powers and T. Riedel and P. Sahoo}, title = {Some models of geometries and a functional equation}, journal = {Colloquium Mathematicum}, pages = {165--173}, publisher = {mathdoc}, volume = {66}, number = {1}, year = {1993}, doi = {10.4064/cm-66-1-165-173}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-66-1-165-173/} }