@inproceedings{Gajos:2022A9, author = "Gajos, Aleksander", title = "{Testing CPT symmetry in ortho-positronium decays with J-PET detector}", doi = "10.22323/1.414.0172", booktitle = "Proceedings of 41st International Conference on High Energy physics {\textemdash} PoS(ICHEP2022)", year = 2022, volume = "414", pages = "172" }