@article {IOPORT.05456339,
    author       = {Bellini, Pierfrancesco and Nesi, Paolo and Spinu, Marius B.},
    title        = {Cooperative visual manipulation of music notation.},
    year         = {2002},
    journal      = {ACM Transactions on Computer-Human Interaction (TOCHI)},
    volume       = {9},
    number       = {3},
    issn         = {1073-0516},
    pages        = {194-237},
    publisher    = {Association for Computing Machinery (ACM), New York, NY},
    doi          = {10.1145/568513.568515},
    identifier   = {05456339},
}