@article{ZNSL_2015_437_a2,
     author = {A. Bondal and I. Zhdanovskiy},
     title = {Ortogonal pairs and mutually unbiased bases},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {35--61},
     year = {2015},
     volume = {437},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_437_a2/}
}