Figure 1.

Bounds for oscillation constantbfrom (23) for<a onClick="popup('http://www.boundaryvalueproblems.com/content/2014/1/83/mathml/M229','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2014/1/83/mathml/M229">View MathML</a>,<a onClick="popup('http://www.boundaryvalueproblems.com/content/2014/1/83/mathml/M230','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2014/1/83/mathml/M230">View MathML</a>.

Fišnarová and Mařík Boundary Value Problems 2014 2014:83   doi:10.1186/1687-2770-2014-83
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