  We demonstrate the importance of including the lensing contribution in galaxy
clustering analyses with large galaxy redshift surveys. It is well known that
radial cross-correlations between different redshift bins of galaxy surveys are
dominated by lensing. But we show here that also neglecting lensing in the
autocorrelations within one bin severely biases cosmological parameter
estimation with redshift surveys. It leads to significant shifts for several
cosmological parameters, most notably the scalar spectral index and the
neutrino mass scale. Especially the latter parameter is one of the main targets
of future galaxy surveys.
