@article {audibert2020smoking, title = {Smoking-gun evidence of black hole feeding in NGC1808}, journal = {arXiv preprint arXiv:2011.09133}, year = {2020}, author = {Audibert, A and Combes, F. and Garc{\'{\i}a-Burillo, S and Hunt, L and Eckart, A and Aalto, S and Casasola, V and Boone, F and Krips, M and Viti, S and others} }