@article{10_14712_1213_7243_2015_241,
     author = {Fryz, Iryna V.},
     title = {Algorithm for the complement of orthogonal operations},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {135--151},
     publisher = {mathdoc},
     volume = {59},
     number = {2},
     year = {2018},
     doi = {10.14712/1213-7243.2015.241},
     mrnumber = {3815681},
     zbl = {06940859},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.241/}
}