@article{AUCMP_1972_13_1_a2,
     author = {Beran, L. and Je\v{z}ek, J.},
     title = {On embedding of lattices in simple lattices},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {87--89},
     year = {1972},
     volume = {13},
     number = {1},
     mrnumber = {0319827},
     zbl = {0268.06003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1972_13_1_a2/}
}