@article {3272,
	title = {Continuous solitons in lattice nonlinearity},
	journal = {Phys. Rev. Lett},
	volume = {114},
	number = {20},
	year = {2015},
	pages = {203901},
	author = {Pierangeli, D and M. Flammini and F Di Mei and Parravicini, J. and de Oliveira, C.E.M. and Agranat, A.J. and E. Del Re}
}
