Advances in agile and user-centred software engineering Third International Conference on Lean and Agile Software Development, LASD 2019, and 7th Conference on Multimedia, Interaction, Design and Innovation, MIDI 2019, Leipzig, Germany, September 1–4, 2019, Revised Selected Papers - Przybyłek, Adam ca. 20./21. Jh; Morales-Trujillo, Miguel Ehécatl ca. 20./21. Jh (Springer, 2020)