@inproceedings{Hallahan:2009DZ, author = "Hallahan, Redmond", title = "{The Deca-parsec Scale Radio Structures of BL Lac Objects}", doi = "10.22323/1.072.0029", booktitle = "Proceedings of The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting {\textemdash} PoS(IX EVN Symposium)", year = 2009, volume = "072", pages = "029" }