www.designboom.com/art/hans-kotter-limitless-light-sculptures-at-designmiami-basel-2012
www.ignant.de/2012/08/08/hans-kotter/?lang=de
www.debuckgallery.com
www.artameriquelatine.com
www.patrickheide.com
www.galerie-klaus-benden.de
www.borusancontemporary.com
http://www.gazette-drouot.com
www.kepeskozpont.hu
www.candyandcandy.com/#/2012/limitless-light-sculptures-by-hans-kotter/