@article{RCM_1985__19_181745,
     author = {Rolando Chuaqui},
     title = {Factual {And} {Cognitive} {Probability.}},
     journal = {Revista colombiana de matematicas},
     pages = {43--58},
     publisher = {mathdoc},
     volume = {19},
     year = {1985},
     zbl = {0627.60008},
     url = {http://geodesic.mathdoc.fr/item/RCM_1985__19_181745/}
}