@article{CMJ_1998__48_3_a5,
     author = {K\"unzi, Hans-Peter A. and Wajch, Eliza},
     title = {On $\sigma$-discrete {Borel} mappings via quasi-metrics},
     journal = {Czechoslovak Mathematical Journal},
     pages = {439--455},
     publisher = {mathdoc},
     volume = {48},
     number = {3},
     year = {1998},
     mrnumber = {1637926},
     zbl = {0949.54036},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_3_a5/}
}