@inproceedings{Stroganov:2002hJ, author = "Stroganov, Yuri and Alcaraz, F. C.", title = "{Free fermion branches in some quantum spin models }", doi = "10.22323/1.008.0037", booktitle = "Proceedings of Workshop on Integrable Theories, Solitons and Duality {\textemdash} PoS(unesp2002)", year = 2002, volume = "008", pages = "037" }