@article{TM_1964_72_a6,
     author = {A. V. Idel'son},
     title = {The calculi of constructive logic with subordinate variables},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {228--343},
     publisher = {mathdoc},
     volume = {72},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1964_72_a6/}
}