@inproceedings{Foffano:2023hO, author = "Foffano, Luca and Vittorini, Valerio and Tavani, Marco and Menegoni, Eloisa", title = "{Absorption features in gamma-ray spectra of BL Lac objects}", doi = "10.22323/1.417.0079", booktitle = "Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy {\textemdash} PoS(Gamma2022)", year = 2023, volume = "417", pages = "079" }