@inproceedings{Chug:2022CE, author = "Chug, Neha and Gajos, Aleksander", title = "{CPT symmetry test in positronium annihilations with the J-PET detector}", doi = "10.22323/1.380.0440", booktitle = "Proceedings of Particles and Nuclei International Conference 2021 {\textemdash} PoS(PANIC2021)", year = 2022, volume = "380", pages = "440" }