@article{AUCMP_1986__27_2_a1,
     author = {Kepka, T. and Niemenmaa, M.},
     title = {On splitting $k$-systems},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1986},
     mrnumber = {0878621},
     zbl = {0608.20054},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_1986__27_2_a1/}
}