@article {6383,
	title = {Anomalous monopoles of an interacting boson system},
	journal = {Physics Letters, Section A: General, Atomic and Solid State Physics},
	year = {2011},
	pages = {545-548},
	doi = {10.1016/j.physleta.2010.12.030},
	author = {Biao Wu and Qi Zhang and Jie Liu}
}
