Line-Intensity Mapping: Why and How
1 : Laboratoire d'Astrophysique de Marseille 
                                (LAM)
                            
	                             - 
	                            Website
INSU, CNRS : UMR7326, Aix Marseille Université
Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - 
                               France
I will overview the science case for complementing 21 cm observations of the Epoch of Reionization with line-intensity mapping surveys in other emission lines. I will also discuss new work in progress on circumventing the line-interloper contamination problem in such surveys, focusing on the case of [CII] at z~7. 

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