@article{ZVMMF_1972_12_3_a25,
     author = {N. P. Brusentsov},
     title = {An improved parenthesis-free notation for formulas},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {820--822},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1972_12_3_a25/}
}