Stabilising a nulling interferometer using optical path difference dithering P. Gabor, B. Chazelas, F. Brachet, M. Ollivier, M. Decaudin, S. Jacquinod, A. Labèque and A. Léger A&A, 483 1 (2008) 365-369 Published online: 11 March 2008 DOI: 10.1051/0004-6361:20077830