@article{5189516570254ff68d8fa04dc0f39f3a,
title = "Distance-regular graph with intersection array {27, 20, 7; 1, 4, 21} does not exist",
keywords = "Automorphism, Distance-regular graph, Graph г with strongly regular graph г3",
author = "Efimov, {Konstantin S.} and Makhnev, {Alexander A.}",
year = "2020",
doi = "10.15826/UMJ.2020.2.006",
language = "English",
volume = "6",
pages = "63--67",
journal = "Ural Mathematical Journal",
issn = "2414-3952",
publisher = "Институт математики и механики им. Н.Н. Красовского УрО РАН",
number = "2",
}