Reference:
Heikki Mannila. Measures of presortedness and optimal sorting algorithms. IEEE Transactions on Computers, C-34:318–325, April 1985.
Suggested BibTeX entry:
@article{mannilaieee, author = {Heikki Mannila}, journal = {IEEE Transactions on Computers}, month = {April}, pages = {318-325}, title = {Measures of presortedness and optimal sorting algorithms}, volume = {C-34}, year = {1985}, }