Bibliography
Document part I. Author Halada Jan Issue data Praha : Nakladatelství AKROPOLIS, 1992 File Books Document part II. Author Halada Jan Co-authors Doubek František (Illustrator) Issue data Praha : Nakladatelství AKROPOLIS, 1993 File Books Document part III. Author Halada Jan Co-authors Doubek František (Illustrator) Issue data Praha : Nakladatelství AKROPOLIS, 1994 File Books