@article{UMJ_2021_7_2_a3,
     author = {Alexander A. Makhnev and Ivan N. Belousov},
     title = {Shilla graphs with $b = 5$ and $b = 6$},
     journal = {Ural mathematical journal},
     pages = {51--58},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2021_7_2_a3/}
}