Osipchuk, T. M., and M. V. Tkachuk. 2011. “Analytic Criterion for Linear Convexity of Hartogs Domains With Smooth Boundary in $H^2$”. Ukrains’kyi Matematychnyi Zhurnal 63 (2), 226-36. https://umj.imath.kiev.ua/index.php/umj/article/view/2713.