Rashkovskii AY, Ronkin LI. Extension and approximation of functions subharmonic in a half plane. Impossibility of extension of plurisubharmonic functions. Ukr. Mat. Zhurn. [Internet]. 1994Aug.25 [cited 2024Nov.24];46(8):1017–1030. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5655