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2. Mattiasson K, Sigvant M. On necking prediction in ductile metal sheets. In: Proceedings of ESAFORM 2006 – the 9th international conference on material forming, Juster, Rosochowski (editors.). Glasgow, UK; 2006. p. 335–8. ISBN/ISSN: 83-89541-66-1.
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4. Mattiasson K, Sigvant M, Larsson M. Theoretical and experimental sheet metal failure valuation. In: Proceedings of IDDRG'07. Györ, Hungary; 2007. p. 185–94.
5. Mattiasson K, Sigvant M, Larsson M. On the prediction of plastic instability in metal sheets. In: Proceedings of NUMIFORM'07, AIP conference proceedings. Porto, Portugal: vol. 908; 2007. p. 129–34. ISBN/ISSN: 978-0-7354-0416-8.