1. Rational interpolants with pre-assigned poles, theory and practise;Ambroladze;Complex Variables,1997
2. Balayage and convergence of rational interpolants;Ambroladze;J. Approx. Theory,1999
3. The modulus of a plane condenser;Bagby;J. Math. Mech.,1967
4. On interpolation by rational functions;Bagby;Duke Math. J.,1969
5. N.S. Bakhvalov, On the optimal speed of integrating analytic functions, USSR Comput. Math. Math. Phys. 7 (1967) 63–75 (translated from Zh. vȳchisl. Mat. mat. Fiz. 7 (1967) 1011–1020).