\Bibitem{Kha03} \by S.~Ya.~Khavinson \paper Duality relations in the theory of analytic capacity \jour Algebra i Analiz \yr 2003 \vol 15 \issue 1 \pages 3--62 \mathnet{http://mi.mathnet.ru/aa764} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1979716} \zmath{https://zbmath.org/?q=an:1134.31300} \transl \jour St. Petersburg Math. J. \yr 2004 \vol 15 \issue 1 \pages 1--40 \crossref{https://doi.org/10.1090/S1061-0022-03-00800-8}