@misc{KYB_2021__57_4_a0,
     title = {Editorial},
     journal = {Kybernetika},
     pages = {567--567},
     publisher = {mathdoc},
     volume = {57},
     number = {4},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2021__57_4_a0/}
}