TY  - JOUR
AU  - Shapiro, H. L.
TI  - Extensions of Pseudometrics
JO  - Canadian journal of mathematics
PY  - 1966
SP  - 981
EP  - 998
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-099-0/
DO  - 10.4153/CJM-1966-099-0
ID  - 10_4153_CJM_1966_099_0
ER  -