Knispel, Benjamin Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
http://www.sterne-und-weltraum.de/alias/schwarze-loecher/wise-entdeckt-200-blazare/1148614 (Publisher version)
Knispel, B. (2012). WISE entdeckt 200 Blazare. Sterne und Weltraum: ASTROnews.