@article {planck2014-XVIII,
	title = {Planck intermediate results. XVIII. The millimetre and sub-millimetre emission from planetary nebulae},
	journal = {\aap},
	volume = {573},
	year = {2015},
	month = {jan},
	pages = {A6},
	keywords = {planetary nebulae: general, radio continuum: ISM, submillimeter: ISM},
	author = {\sorthelpPlanck Collaboration IntRPlanck Collaboration Int. XVIII}
}