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Horvath I.; Hakkila J. & Bagoly Z. (2013). "The largest structure of the Universe, defined by Gamma-Ray bursts". 7th Huntsville Gamma-Ray Burst Symposium, GRB 2013: Paper 33 in EConf Proceedings C1304143. 1311: 1104. arXiv:1311.1104. Bibcode:2013arXiv1311.1104H.
Horvath, Istvan; Bagoly, Zsolt; Hakkila, Jon; Tóth, L. Viktor (2015). "Anomalies in the GRB spatial distribution". Proceedings of Science. arXiv:1507.05528v1.