1. Regirer, S.A., Prikl. Mat. Mekh., 1957, vol. 21, no. 3, p. 424.
2. Kaganov, S.A., Prikl. Mekh. Tekh. Fiz., 1962, no. 3, p. 96.
3. Prokopets, S.I., Inzh. Fiz. Zh., 1971, vol. 20, no. 6, p. 1042.
4. Pearson, J.R.A., J. Fluid Mech., 1977, vol. 83, p. 191.
5. Pearson, J.R.A., Polymer Eng. Sci., 1978, vol. 18, no. 3, p. 222.