@article{CM_1970__22_3_333_0,
     author = {Gordon, Carl E.},
     title = {Comparisons between some generalizations of recursion theory},
     journal = {Compositio Mathematica},
     pages = {333--346},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {22},
     number = {3},
     year = {1970},
     mrnumber = {285382},
     zbl = {0235.02037},
     language = {en},
     url = {http://www.numdam.org/item/CM_1970__22_3_333_0/}
}