Liang, X., Y.-Y. Tan, and J. Koolen. “Thin Distance-Regular Graphs With Classical Parameters $(D,q,q, \frac{q^{t}-1}{q-1}-1)$ With $t> D$ Are the Grassmann Graphs”. The Electronic Journal of Combinatorics, Vol. 28, no. 4, Dec. 2021, p. P4.45, doi:10.37236/10586.