@article{KYB_1986__22_2_a7,
     author = {Hromkovi\v{c}, Juraj},
     title = {Hierarchy of reversal bounded one-way multicounter machines},
     journal = {Kybernetika},
     pages = {200--206},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1986},
     mrnumber = {849689},
     zbl = {0607.68034},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1986__22_2_a7/}
}