The 11th ISMN Panel Meeting took place in Ljubljana, Slovenia, on May 16 2003, by invitation of the Slovenian ISMN Agency. The venue was the National and University Library. The kind hostess of this meeting was Alenka Kanic, head of the Slovenian ISMN Agency. The warm reception by her, her co-workers, and the other members of the Kanic family of the ISMN representatives of ten European countries laid the foundation for fruitful discussions which centered around the following question: whether the ISMN should be applied to virtual entities offered by Internet publishers of printed music and in which respect databases of printed music incorporate ISMN information and are able to increase the awareness of the potentials of the music number. For a detailed report about the meeting's presentations and discussions in ISMN Newsletter No. 13 click here. For a picture gallery offered by Alenka and Ivan Kanic click here.