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Figure 1.

Cases in estimating <a onClick="popup('http://www.boundaryvalueproblems.com/content/2012/1/36/mathml/M60','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2012/1/36/mathml/M60">View MathML</a>.

Liu and Pan Boundary Value Problems 2012 2012:36   doi:10.1186/1687-2770-2012-36
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