@inproceedings{Vieu:2023XS, author = "Vieu, Thibault and Reville, Brian", title = "{Can massive star clusters produce PeV protons?}", doi = "10.22323/1.417.0041", booktitle = "Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy {\textemdash} PoS(Gamma2022)", year = 2023, volume = "417", pages = "041" }