@inproceedings{Ishitsuka:2013bf, author = "Ishitsuka, Masaki", title = "{Study of tau-pair production at HERA}", doi = "10.22323/1.174.0049", booktitle = "Proceedings of 36th International Conference on High Energy Physics {\textemdash} PoS(ICHEP2012)", year = 2013, volume = "174", pages = "049" }