This entry in our Multiplicity of Authors collection features several Quisiquaters and several Guillous:
“How to Explain Zero-Knowledge Protocols to Your Children,” Jean-Jacques Quisquater [pictured here], Myriam Quisquater, Muriel Quisquater, Michaël Quisquater, Louis C. Guillou, Marie Annick Guillou, Gaïd Guillou, Anna Guillou, Gwenolé Guillou, Soazig Guillou, Thomas A. Berson, Proceedings of the 9th Annual International Cryptology Conference, Santa Barbara, California, USA, August 20-24, 1989, pp. 628-631.
(Thanks to Jean-Jacques Quisquater for bringing this to our attention.)