@article{PORMA_2001__58_2_49908,
     author = {Campos Ferreira, J.},
     title = {On some general notions of superior limit, inferior limit and value of a distribution at a point.},
     journal = {Portugaliae mathematica},
     pages = {139--158},
     publisher = {mathdoc},
     volume = {58},
     number = {2},
     year = {2001},
     zbl = {1009.46021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_2001__58_2_49908/}
}