[1] B. Banerjee, B. J. Sengupta and B. P. Pal, Resistivity sounding on
a multilayered earth containing transition layers, Geophys. Prosp. 28
(1980), 750-758.
[2] A. D. Chave, Numerical integration of related Hankel transforms by
quadrature and continued fraction expansion, Geophysics 48 (1983),
1671-1686.
[3] S. C. Jain, Resistivity sounding on a three-layer transitional
model, Geophys. Prosp. 20 (1972), 283-292.
[4] O. Koefoed, Resistivity sounding on an earth model containing
transition layers with linear change of resistivity with depth,
Geophys. Prosp. 27 (1979), 862-868.
[5] K. Mallick and A. Roy, Resistivity sounding on a two-layer earth
with transitional boundary, Geophys. Prosp. 16 (1968), 436-446.
[6] D. Patella, Resistivity sounding on a multi-layered earth with
transitional layers, Part I: Theory, Geophys. Prosp. 25 (1977),
699-729.
[7] D. Patella, Resistivity sounding on a multi-layered earth with
transitional layers, Part II: Theoretical and field examples, Geophys.
Prosp. 26 (1978), 130-156.
[8] W. H. Press, S. A. Teukolsky, W. T. Vetterling and B. P. Flannery,
Numerical Recipes in Fortran 77: The Art of Scientific Computing,
Fortran Numerical Recipes, Vol. 1, 2nd Edition, Cambridge Univ. Press,
1992.
[9] W. Sripanya and S. Yooyuanyong, Mathematical inverse problem of
electric potential in a heterogeneous layered earth containing
electrodes, Journal of Mathematical Sciences: Advances and
Applications 7(1) (2011), 37-56.