@inproceedings{Flieger:2020Zz, author = "Flieger, Wojciech Jakub and Grzanka, Krzysztof Grzegorz", title = "{New constraints on heavy neutral leptons coming from oscillation data analysis and precision $e^{+}e^{-}$ physics}", doi = "10.22323/1.390.0129", booktitle = "Proceedings of 40th International Conference on High Energy physics {\textemdash} PoS(ICHEP2020)", year = 2020, volume = "390", pages = "129" }