Invisible Graffiti on Your Buildings: Blind and Squaring-Proof Watermarking of Geographical Databases. - Julien Lafaye; Jean Béguec; David Gross-Amblard; Anne Ruas (SSTD, 2007)

Blind and squaring-resistant watermarking of vectorial building layers. - Julien Lafaye; Jean Béguec; David Gross-Amblard; Anne Ruas (GeoInformatica, 2012)