@article{TRSPY_1967_93_a7,
     author = {Phan {\DJ}{\`\i}ni Di\^eu},
     title = {A~language of constructive mathematics involving systems of sets},
     journal = {Informatics and Automation},
     pages = {123--141},
     publisher = {mathdoc},
     volume = {93},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_93_a7/}
}