@inproceedings{duPloy:2020H0, author = "du Ploy, Drikus and van Soelen, Brian", title = "{Gamma-gamma absorption in gamma-ray binary systems}", doi = "10.22323/1.371.0054", booktitle = "Proceedings of 7th Annual Conference on High Energy Astrophysics in Southern Africa {\textemdash} PoS(HEASA2019)", year = 2020, volume = "371", pages = "054" }