Discussion Group Summary: Optical Music Recognition. In: Graphics Recognition. Current Trends and Evolutions. 12th IAPR International Workshop, GREC 2017, Kyoto, Japan, November 9-10, 2017, Revised Selected Papers, Lecture Notes in Computer Science, ISSN 0302-9743, vol. 11009, no. 1, pp. 152-157, Springer International Publishing, Basel, Switzerland, ISBN 978-3-030-02284-6 (url, bibtex)