Speckle interferometry of nearby multiple stars I. I. Balega, Y. Y. Balega, K.-H. Hofmann, A. F. Maksimov, E. A. Pluzhnik, D. Schertl, Z. U. Shkhagosheva and G. Weigelt A&A, 385 1 (2002) 87-93 Published online: 15 April 2002 DOI: 10.1051/0004-6361:20020005