@article{dmtcs:3461,
    title      = {An extremal problem on trees and database theory},
    author     = {Gyula O.H. Katona and Krisztián Tichler},
    url        = {https://dmtcs.episciences.org/3461},
    doi        = {10.46298/dmtcs.3461},
    journal    = {Discrete Mathematics \& Theoretical Computer Science},
    issn       = {1365-8050},
    volume     = {DMTCS Proceedings vol. AE, European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05)},
    issuetitle = {Proceedings},
    eid        = 71,
    year       = {2005},
    month      = {Jan},
    keywords   = {labelled directed tree, relational database, minimum matrix representation, extremal problems, [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]},
    language   = {English},
}