@article {27397,
	title = {Invariants of Broken Discrete Symmetries},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {113},
	year = {2014},
	month = {2014},
	isbn = {0031-90071079-7114},
	author = {Kalozoumis, P. A. and Morfonios, V, C. and Diakonos, F. K. and Schmelcher, P.}
}
