@article{ARM_2011__47_2_a3,
     author = {Hasil, Petr},
     title = {Criterion of $p$-criticality for one term $2n$-order difference operators},
     journal = {Archivum mathematicum},
     pages = {99--109},
     publisher = {mathdoc},
     volume = {47},
     number = {2},
     year = {2011},
     mrnumber = {2813536},
     zbl = {1249.39001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2011__47_2_a3/}
}