@inproceedings{Cover:2010L7, author = "Cover, Keith S.", title = "{Differences at low l in Planck's first light sky map from WMAP's and COBE's}", doi = "10.22323/1.097.0019", booktitle = "Proceedings of International Workshop on Cosmic Structure and Evolution {\textemdash} PoS(Cosmology2009)", year = 2010, volume = "097", pages = "019" }