@article{10_4153_CJM_1970_112_x,
     author = {Shapiro, H. L.},
     title = {More on {Extending} {Continuous} {Pseudometrics}},
     journal = {Canadian journal of mathematics},
     pages = {984--993},
     year = {1970},
     volume = {22},
     number = {5},
     doi = {10.4153/CJM-1970-112-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-112-x/}
}