Figure 6.

The bifurcation portrait: forNodd (on the left,<a onClick="popup('http://www.boundaryvalueproblems.com/content/2013/1/204/mathml/M364','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2013/1/204/mathml/M364">View MathML</a>) andNeven (on the right,<a onClick="popup('http://www.boundaryvalueproblems.com/content/2013/1/204/mathml/M365','MathML',630,470);return false;" target="_blank" href="http://www.boundaryvalueproblems.com/content/2013/1/204/mathml/M365">View MathML</a>).

Giorgi and Vuk Boundary Value Problems 2013 2013:204   doi:10.1186/1687-2770-2013-204
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