Add more publications

[twagoo]

Do we want add additional publications beyond the CMDI chapter of the 2022 CLARIN book? Let's use this issue to collect some ideas.

[twagoo]

• Broeder, D., Windhouwer, M., Van Uytvanck, D., Goosen, T., & Trippel, T. (2012, May). CMDI: a component metadata infrastructure. In Describing LRs with metadata: towards flexibility and interoperability in the documentation of LR workshop programme (Vol. 1, p. 47). https://d-nb.info/1251813941/34