Bezkorovaina, L. L. “Surfaces Generated by the Real and Imaginary Parts of Analytic Functions: $A$-Deformations Occurring Independently or Simultaneously”. Ukrains’kyi Matematychnyi Zhurnal 70, no. 4 (April 25, 2018): 447–463. Accessed April 14, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/1567.