Figure 3 .

Variation of the skin friction coefficient withφfor different values ofSwhen<a onClick="popup('http://www.boundaryvalueproblems.com/content/2013/1/39/mathml/M71','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2013/1/39/mathml/M71">View MathML</a>.

Bachok et al. Boundary Value Problems 2013 2013:39   doi:10.1186/1687-2770-2013-39
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