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Swathi, P.S. and Tong, T.W. (1988). A new algorithm for computing the scattering coefficients of highly absorbing cylinders.  J. Quant. Spectrosc. Radiat. Transf., 40: 525-530.

Sugihara, S. and Kishino, M. (1988)

Sugihara, S. and Kishino, M. (1988). An algorithm for estimating the water quality parameters from irradiance just below the sea surface.  J. Geophys. Res., 93: 10,857-10,862.