High frame rate imaging based photometry - Photometric reduction of data from electron-multiplying charge coupled devices (EMCCDs)K. B. W. Harpsøe, U. G. Jørgensen, M. I. Andersen and F. GrundahlA&A, 542 (2012) A23DOI: https://doi.org/10.1051/0004-6361/201219059