@inproceedings{Shimizu:2010I2, author = "Shimizu, Suguru", title = "{Active polarimeter system for TREK experiment}", doi = "10.22323/1.083.0016", booktitle = "Proceedings of 2009 KAON International Conference {\textemdash} PoS(KAON09)", year = 2010, volume = "083", pages = "016" }