Liang, X., Tan, Y.-Y., & Koolen, J. (2021). 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, 28(4), P4.45. https://doi.org/10.37236/10586