@article{MS2_1974__35_166375,
     author = {Jan Gustavsson},
     title = {Metrization of {Quasi-Metric} {Spaces.}},
     journal = {Mathematica Scandinavica},
     pages = {56--60},
     publisher = {mathdoc},
     volume = {35},
     year = {1974},
     zbl = {0294.54027},
     url = {http://geodesic.mathdoc.fr/item/MS2_1974__35_166375/}
}