@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},
     year = {1993},
     volume = {66},
     number = {1},
     doi = {10.4064/cm-66-1-165-173},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-66-1-165-173/}
}