%0 Journal Article %A Melzak, Z.A. %T An Informal Arithmetical Approach to Computability and Computation %J Canadian mathematical bulletin %D 1961 %P 279-293 %V 4 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1961-031-9/ %R 10.4153/CMB-1961-031-9 %F 10_4153_CMB_1961_031_9