Erkki Mäkinen. On the longest upsequence problem for permutations. Int. J. Comput. Math., 77(1):45-53, 2001. [doi]
@article{Makinen01-0,
title = {On the longest upsequence problem for permutations},
author = {Erkki Mäkinen},
year = {2001},
doi = {10.1080/00207160108805049},
url = {http://dx.doi.org/10.1080/00207160108805049},
researchr = {https://researchr.org/publication/Makinen01-0},
cites = {0},
citedby = {0},
journal = {Int. J. Comput. Math.},
volume = {77},
number = {1},
pages = {45-53},
}