@inproceedings{Adkins:2019Hc, author = "Adkins, Gregory and Akers, Benjamin and Alam, Md Faisal and Tran, Lam M. and Zhang, Xuan", title = "{Calculation of higher order corrections to positronium energy levels}", doi = "10.22323/1.353.0004", booktitle = "Proceedings of International Conference on Precision Physics and Fundamental Physical Constants {\textemdash} PoS(FFK2019)", year = 2019, volume = "353", pages = "004" }