COFFE: a code for the full-sky relativistic galaxy correlation function
  We present a public version of the code COFFE (COrrelation Function Full-sky
Estimator) available at https://github.com/JCGoran/coffe. The code computes the
galaxy two-point correlation function and its multipoles in linear perturbation
theory, including all relativistic and wide angle corrections. COFFE also
calculates the covariance matrix for two physically relevant estimators of the
correlation function multipoles. We illustrate the usefulness of our code by a
simple but relevant example: a forecast of the detectability of the lensing
signal in the multipoles of the two-point function. In particular, we show that
lensing should be detectable in the multipoles of the two-point function, with
a signal-to-noise larger than 10, in future surveys like Euclid or the SKA.
