@article{Fairhurst:2019vut,
    author = "Fairhurst, Stephen and Green, Rhys and Hoy, Charlie and Hannam, Mark and Muir, Alistair",
    title = "{The two-harmonic approximation for gravitational waveforms from precessing binaries}",
    eprint = "1908.05707",
    archivePrefix = "arXiv",
    primaryClass = "gr-qc",
    reportNumber = "LIGO-P1900225",
    month = "8",
    year = "2019"
}