@article{10_4064_fm_42_2_232_239,
     author = {Andrzej Grzegorczyk},
     title = {On the definition of computable functionals},
     journal = {Fundamenta Mathematicae},
     pages = {232--239},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {1955},
     doi = {10.4064/fm-42-2-232-239},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-42-2-232-239/}
}