1. Atkinson, K.E.: The Numerical Solution of Integral Equations of the Second Kind. Cambridge University Press, Cambridge (1997)
2. Atkinson, K.E.: A Survey of Numerical Methods for the Solution of Fredholm Integral Equations. Society for Industry and Applied Mathematics, Philadephia (1976)
3. Davis, P.J., Rabinowitz, P.: Methods of Numerical Integration, 2nd edn. Academic Press, Orlando (1984)
4. Greengard, L., Gimbutas, Z.: FMMLIB2D, a MATLAB Toolbox for Fast Multipole Method in Two Dimensions, Version 1.2. http://www.cims.nyu.edu/cmcl/fmm2dlib/fmm2dlib.html (2012)
5. Helsing, J., Ojala, R.: On the evaluation of layer potentials close to their sources. J. Comput. Phys. 227(5), 2899–2921 (2008)