A double detached shell around a post-red supergiant: IRAS 17163-3907, the Fried Egg nebulaE. Lagadec, A. A. Zijlstra, R. D. Oudmaijer, T. Verhoelst, N. L. J. Cox, R. Szczerba, D. Mékarnia and H. van WinckelA&A, 534 (2011) L10DOI: https://doi.org/10.1051/0004-6361/201117521
