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3. A general theory of wet surface heat exchangers and its application to regenerative evaporative cooling;Maclaine-cross;Journal of Heat Transfer,1981
4. Hausen, H., Wärmeübertragung im Gegenstrom, Gleichstrom und Kreuzstrom. Springer, New York, 1976.
5. Johnson, N. L. and Leone, F. C., Statistics and Experimental Design in Engineering and the Physical Sciences, Vol. II, second edition. John Wiley and Sons, New York/London/Sydney/Toronto, 1977.