Correction to: Formalism for power spectral density estimation for non-identical and correlated noise using the null channel in Einstein TelescopeKamiel Janssens, Guillaume Boileau, Marie-Anne Bizouard, Nelson Christensen, Tania Regimbau and Nick van RemortelEur. Phys. J. Plus, 138 5 (2023) 446DOI: https://doi.org/10.1140/epjp/s13360-023-04072-4