def clear_refills_2016(oven_refill_ends):
    """ Some of the automatically found refills in 2016 are incorrect and
    result e.g. from short oven stops. They are cleared out with this
    function based on manual selection and comparison with CALS.

    Parameters
    ----------
    oven_refill_ends : list of timestamps
        The automatically detected _ends_ of the refill periods (time when the
        oven was ramped up again)

    Returns
    -------
    list of timestamps
        *End*-points of the periods that were real refills in 2016
    """

    remove_dates = [
        "2016-01-04",
        "2016-01-19",
        "2016-01-20",
        "2016-01-22",
        "2016-01-26",
        "2016-02-15",
    ]

    return [r for r in oven_refill_ends if not r.strftime("%Y-%m-%d") in remove_dates]