@phdthesis{AhmedElSayed2004,
  author      = {Ahmed Mohammed Ahmed El-Sayed},
  title       = {One some classes and spaces of holomorphic and hyperholomorphic functions},
  type        = {doctoralthesis},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.25},
  year        = {2004},
}