1. School of Mathematical and Physical SciencesUniversity of NewcastleNewcastle NSW Australia
2. School of Mathematical SciencesUniversity of AdelaideAdelaide SA Australia
3. Department of Mathematics and StatisticsUniversity of OtagoDunedin New Zealand
4. Naval Research Laboratory, Stennis Space Center MS USA
5. Polar Scientific LtdAppin UK
6. Institute of Mathematics, University of Augsburg, Germany and Augsburg Centre for Innovative TechnologiesAugsburg Germany