@article{10_21136_CMJ_1982_101844,
     author = {Kurepa, Djuro R.},
     title = {Around {Bolzano's} approach to real numbers},
     journal = {Czechoslovak Mathematical Journal},
     pages = {655--666},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {1982},
     doi = {10.21136/CMJ.1982.101844},
     mrnumber = {682142},
     zbl = {0515.01006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1982.101844/}
}