Jones, G.
(2019).
 Unstable maps.
<em>Acta Mathematica Universitatis Comenianae, 88</em>(2), 341-350.
Retrieved from <a href="http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/amuc/article/view/1030" target="_new">http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/amuc/article/view/1030</a>