@article { 68,
	title = {Primordial magnetic fields from preheating at the EW scale},
	volume = {0807:043},
	year = {2008},
	publisher = {JHEP},
	URL = {http://arxiv.org/abs/arXiv:0805.4159},
	author = {A. Díaz-Gil, J. García-Bellido, M. García Pérez and A. González-Arroyo}
}