@article {planck2015XXV,
	title = {Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds},
	journal = {\aap},
	volume = {594},
	year = {2016},
	month = {oct},
	pages = {A25},
	author = {\sorthelpPlanck Collaboration 201625Planck Collaboration and et al.}
}