Author Details

Cardillo, Alessio, <p>Department of Engineering Mathematics, University of Bristol, BS8 1UB, United Kingdom</p><!-- p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px 'Helvetica Neue'; color: #000000; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} -->