MapRank: Geographical Search for Cartographic Materials in Libraries. - Markus Oehrli; Petr Pridal; Susanne Zollinger; Rosi Siber (D Lib Mag., 2011)

Georeferencer: Crowdsourced Georeferencing for Map Library Collections. - Christopher Fleet; Kimberly C. Kowal; Petr Pridal (D Lib Mag., 2012)

Discovering Old Maps Online and Transforming Them Into Digital Humanities Resources. - Petr Pridal (DH, 2014)