T. Kyle Petersen. The sorting index. Adv. Appl. Math., 47(3):615-630, 2011. [doi]
@article{Petersen11-4, title = {The sorting index}, author = {T. Kyle Petersen}, year = {2011}, doi = {10.1016/j.aam.2011.02.001}, url = {https://doi.org/10.1016/j.aam.2011.02.001}, researchr = {https://researchr.org/publication/Petersen11-4}, cites = {0}, citedby = {0}, journal = {Adv. Appl. Math.}, volume = {47}, number = {3}, pages = {615-630}, }