@inproceedings{Makope:2020hF,
  author = "Makope, Daymore Tapiwa Munyaradzi  and  Winkler, Hartmut  and  van Wyk, Francois",
  title = "{The optical and X-ray properties of a sample of Seyfert galaxies that have undergone significant spectral change}",
  doi = "10.22323/1.371.0030",
  booktitle = "Proceedings of 7th Annual Conference on High Energy Astrophysics in Southern Africa {\textemdash} PoS(HEASA2019)",
  year = 2020,
  volume = "371",
  pages = "030"
}