@article{DMPS_2011_31_1-2_a0,
     author = {Krzy\'sko, Miros{\l}aw and Skorzybut, Micha{\l} and Wo{\l}y\'nski, Waldemar},
     title = {Classifiers for doubly multivariate data},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {5--27},
     publisher = {mathdoc},
     volume = {31},
     number = {1-2},
     year = {2011},
     zbl = {1260.62044},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2011_31_1-2_a0/}
}