@article{ZNSL_2021_504_a6,
     author = {N. A. Kolegov and O. V. Markova},
     title = {The lengths of matrix incidence algebras over small finite fields},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {102--135},
     year = {2021},
     volume = {504},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2021_504_a6/}
}