@article{MASLO_1966_16_1_a8,
author = {Gruska, Jozef},
title = {Two {Operations} with {Formal} {Languages} and their {Influence} upon {Structural} {Unambiguity}},
journal = {Mathematica slovaca},
pages = {58--65},
year = {1966},
volume = {16},
number = {1},
mrnumber = {0245388},
zbl = {0143.25701},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1966_16_1_a8/}
}
Gruska, Jozef. Two Operations with Formal Languages and their Influence upon Structural Unambiguity. Mathematica slovaca, Tome 16 (1966) no. 1, pp. 58-65. http://geodesic.mathdoc.fr/item/MASLO_1966_16_1_a8/
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