Abstract
Addendum of Europhys. Lett. 39-4 p. 425
I was informed by M. Büttiker that my paper [1] is closely connected with the paper [2], where the persistent current in a ring with a quantum dot was considered for the first time. I would like to thank M. Büttiker for attracting my attention to the paper [2].
[1] M. V. Moskalets, Europhys. Lett. 39 (1997) 425
[2] M. Büttiker and C. A. Stafford, Phys. Rev. Lett. 76 (1996) 495.