@article{10_4064_cm_53_2_289_300,
     author = {Ryszard Jerzy Pawlak},
     title = {On rings of {Darboux} functions},
     journal = {Colloquium Mathematicum},
     pages = {289--300},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1987},
     doi = {10.4064/cm-53-2-289-300},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-53-2-289-300/}
}