https://en.m.wikipedia.org/wiki/Deaths_of_Kris_Kremers_and_Lisanne_Froon
https://allthatsinteresting.com/kris-kremers-lisanne-froon
https://web.archive.org/web/20170804015558/http://www.findlisannekris.com/kris-and-lisanne/about-lisanne/
