1. Schlichting, H., Boundary Layer Theory (McGraw-Hill Book Company Inc., New York,1962), 4th ed., pp.479, 482.
2. Sharma, O. P., Rotenberg, M., and Penner, S. S. "Phase-' change problems with variable surface temperatures/5AIAA J. 5, 677-682 (1967).
3. Application of Integral Methods to Transient Nonlinear Heat Transfer