@unpublished{bhl2005musicanalysis,
        title={Music Analysis and Modeling through {Petri} Nets},
        author = {Barat\`{e}, Adriano and Haus, Goffredo and Ludovico, Luca Andrea},
        note = {Pre-Symposium Proceedings of Computer Music Modeling and Retrieval, 3rd International Symposium (CMMR 2005)},
        address = {Pisa},
        year = {2005}
}