1. Carrier G F, Krook M, Pearson C E 1966Functions of a complex variable (New York: McGraw-Hill)
2. Churchill R V 1960Introduction to complex variables (New York: McGraw-Hill)
3. England A H 1971Complex variable methods in elasticity (London: Wiley-Interscience)
4. Givoli D, Elishakoff I 1992 Stress concentration at a nearly circular hole with uncertain irregularities.Trans. ASME: J. Appl. Mech. 59: S65-S71
5. Kober H 1952Dictionary of conformal representations (New York: Dover)