@article{ITA_1985__19_3_293_0,
     author = {Pelin, Alex},
     title = {A formalism for treating equivalence of recursive procedures},
     journal = {RAIRO. Informatique th\'eorique},
     pages = {293--313},
     publisher = {EDP-Sciences},
     volume = {19},
     number = {3},
     year = {1985},
     mrnumber = {809761},
     zbl = {0568.68005},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_1985__19_3_293_0/}
}