A very luminous, highly extinguished, very fast nova – V1721 AquilaeR. Hounsell, M. J. Darnley, M. F. Bode, D. J. Harman, L. A. Helton and G. J. SchwarzA&A, 530 (2011) A81DOI: https://doi.org/10.1051/0004-6361/201016085