@article{10_4153_CMB_1959_008_2,
     author = {Robinson, Abraham},
     title = {Outline of an {Introduction} to {Mathematical} {Logic} {IV}},
     journal = {Canadian mathematical bulletin},
     pages = {33--42},
     year = {1959},
     volume = {2},
     number = {1},
     doi = {10.4153/CMB-1959-008-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1959-008-2/}
}