A high sensitivity Hi survey of the sky at δ ≤ -25° E. M. Arnal, E. Bajaja, J. J. Larrarte, R. Morras and W. G.L. Pöppel Astron. Astrophys. Suppl. Ser., 142 1 (2000) 35-40 Published online: 15 February 2000 DOI: 10.1051/aas:2000134