@article{AUCMP_1975__16_2_a4,
     author = {Bican, L. and Jambor, P. and Kepka, Tom\'a\v{s} and N\v{e}mec, P.},
     title = {Stable and costable preradicals},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {63--69},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1975},
     mrnumber = {0387333},
     zbl = {0316.16031},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1975__16_2_a4/}
}