Challenges in Enabling Mixed Media Scholarly Research with Multi-media Data in a Sustainable Infrastructure. - Roeland Ordelman; Carlos Martinez-Ortiz; Liliana M. Melgar Estrada; Marijn Koolen; Jaap Blom; Willem Melder; Jasmijn van Gorp; Victor de Boer; Themistoklis Karavellas; Lora Aroyo; Thomas Poell; Norah Karrouche; et al. (DH, 2018)