@article{dmtcs:5214,
    title      = {On the number of pancake stacks requiring four flips to be sorted},
    author     = {Saúl A. Blanco and Charles Buehrle and Akshay Patidar},
    url        = {https://dmtcs.episciences.org/5214},
    doi        = {10.23638/DMTCS-21-2-5},
    journal    = {Discrete Mathematics \& Theoretical Computer Science},
    issn       = {1365-8050},
    volume     = {Vol. 21 no. 2, Permutation Patters 2018},
    eid        = 5,
    year       = {2019},
    month      = {Nov},
    keywords   = {Computer Science - Discrete Mathematics, Mathematics - Combinatorics, 05A15, 05A05, 68R10, G.2.0, G.2.1, G.2.2},
}