1. and , ‘Integral equation formulation for ground-water flow’, A.S.C.E. Hyd. Div HY10 (1981).
2. and , ‘A complex variable boundary element method: development’, Int. numer. methods eng., (1984).
3. and , ‘An algorithm to reduce approximation error from the CVBEM’, submitted to Cold Regions Sci. Technol. (1983).