@inproceedings{Gitman:2014wU, author = "Gitman, Dmitry and Baldiotti, Mario Cesar and Santos, Marcelo Meireles", title = "{Two and three coupled spins in magnetic field}", doi = "10.22323/1.200.0009", booktitle = "Proceedings of Third International Satellite Conference on Mathematical Methods in Physics {\textemdash} PoS(ICMP 2013)", year = 2014, volume = "200", pages = "009" }