MIDOP can be cited by mentioning the following publication:
Locati M. and Cassera A. (2010). MIDOP: Macroseismic Intensity Data Online Publisher. Rapporti Tecnici INGV, 123, 92 pp.
Link to the publication
http://istituto.ingv.it/it/le-collane-editoriali-ingv/rapporti-tecnici-ingv/rapporti-tecnici-2010.html