1. T. Kakutani and K. Matsuuchi, “Effect of viscosity on long gravity waves,” J. Phys. Soc. Japan, 39, No.1, 237–246 (1975).
2. V. D. Djordjevic, “On the dissipation of interfacial and internal long gravity waves,” ZAMP, 31, No.3, 318–331 (1980).
3. V. D. Djordjevic, “On the effect of viscosity on some nonwave motions of liquids with the free surface,” Acta Mech., 48, No.3, 4, 219–226 (1983).
4. C. Nakaya, “Spread of fluid drops over a horizontal plane,” J. Phys. Soc. Japan, 37, No.2, 539–543 (1974).
5. J. Lighthill, Waves in Fluids, Cambridge Univ. Press, Cambridge (1980).