@article{10_4064_cm_6_1_67_78,
     author = {S. Kleene},
     title = {Extension of an effectively generated class of functions by enumeration},
     journal = {Colloquium Mathematicum},
     pages = {67--78},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1958},
     doi = {10.4064/cm-6-1-67-78},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-6-1-67-78/}
}