Wang, Sheng, Jian Peng, and Jinbo Xu. "Alignment of distantly related protein structures: algorithm, bound and implications to homology modeling." Bioinformatics 27.18 (2011): 2537-2545.

Gomez, Miguel Angel Rubio, and Michael Ibba. "Aminoacyl-tRNA synthetases." Rna 26.8 (2020): 910-936.