1. Foundations of potential theory;Kellog,1953
2. Mietody potiencjała w tieorii uprugosti;Kupradze,1963
3. Mnogomiernyje singularnyje intiegrały i intiegralnyje urawnienia;Michlin,1963
4. Integral Equations Method in potential theory;Jaswon;Proceedings of Royal Society A,1963
5. Integral Equation Method in potential theory;Symm;II. Proceedings of Royal Society A,1963