The proceedings of the MMM 2019 conference

The proceedings of the [MMM 2019 conference](http://mmm2019.iti.gr/) are now available as Springer [LNCS vol. 11295](https://www.springer.com/gp/book/9783030057091) ([MMM 2019 Proceedings Part I](https://www.springer.com/gp/book/9783030057091)) and [LNCS vol. 11296](https://www.springer.com/gp/book/9783030057152) ([MMM 2019 Proceedings Part II](https://www.springer.com/gp/book/9783030057152)).