X. Liang, 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”, Electron. J. Combin., vol. 28, no. 4, p. P4.45, Dec. 2021.