1. Estimates for the spectrum of the difference between fractional powers of two selfadjoint operators;Birman;Soviet Math.,1975
2. Interpolation of Operators;Bennett,1988
3. Abstract spectral decomposition guaranteed by the Hilbert transform;Berkson;Proc. London Math. Soc.,1986
4. Generalized analyticity in UMD-spaces;Berkson;Ark. Mat.,1989
5. Double Stieltjes operator integrals I;Birman;Problemy Mat. Fiz.,1966