Estimates fromBelow Lebesgue Constants. A.G. Ramm; E.R. Liflyand — 1995 The journal of Fourier analysis and applications [[Elektronische Ressource]]
The Banach Algebra A* and Its Problems. E.R. Liflyand; E.S. Belinskii; R.M. Trigub — 1997 The journal of Fourier analysis and applications [[Elektronische Ressource]]