Photometry of supernovae in an image series: methods and application to the SuperNova Legacy Survey (SNLS)P. Astier, P. El Hage, J. Guy, D. Hardin, M. Betoule, S. Fabbro, N. Fourmanoit, R. Pain and N. RegnaultA&A, 557 (2013) A55DOI: https://doi.org/10.1051/0004-6361/201321668