@inproceedings{Serpico:2016dK, author = "Serpico, P. and Poulin, Vivian", title = "{A loophole to the universal photon spectrum in electromagnetic cascades: applications to non-thermal primordial nucleosynthesis}", doi = "10.22323/1.258.0119", booktitle = "Proceedings of 18th International Conference From the Planck Scale to the Electroweak Scale {\textemdash} PoS(PLANCK 2015)", year = 2016, volume = "258", pages = "119" }