@article{NUMA_1971__18_132088,
     author = {U. Kulisch},
     title = {An {Axiomatic} {Approach} to {Rounded} {Computations.}},
     journal = {Numerische Mathematik},
     pages = {1--17},
     publisher = {mathdoc},
     volume = {18},
     year = {1971},
     zbl = {0243.65017},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1971__18_132088/}
}