@article{Meng:20097M, author = "Meng, Xiangfei and Li, Anyi and Alexandru, Andrei and Liu, Keh-Fei", title = "{Winding number expansion in canonical approach to finite density }", doi = "10.22323/1.066.0032", journal = "PoS", year = 2009, volume = "LATTICE 2008", pages = "032" }