@article{DM_2021_33_4_a5,
     author = {A. A. Makhnev and Venbin Guo},
     title = {On distance-regular graphs $\Gamma$ of diameter 3 for which $\Gamma_3$ is a triangle-free graph},
     journal = {Diskretnaya Matematika},
     pages = {61--67},
     publisher = {mathdoc},
     volume = {33},
     number = {4},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2021_33_4_a5/}
}