On nitrogen uptake during creep testing of an austenitic stainless steel
  M Schwind, P Liu, J-O Nilsson, J Ågren,  H-O Andrén  and J Källqvist
  Proceeding Euromat 2001 , Rimini Italy

Development of precipitate size and volume fraction of niobium carbonitrides in stabilised stainless steel 
  J Källqvist and H-O Andrén 
  Mater. Sci. Techn. 16 (2000) 1181-1185 
also published in
  Quantitative microscopy of high temperature materials
  A. Strang J. Cawley
  The university press Cambridge 2001
  p. 319-329

Sigma-phase precipitation in stabilized austenitic stainless steels 
  M Schwind, J Källqvist, J-O Nilsson, J Ågren and H-O Andrén 
  Acta Mater. 48 (2000) 2473-2481. 
 

Microanalysis of a stabilised austenitic stainless steel after long term ageing 
  J Källqvist and H-O Andrén 
  Mater. Sci. Eng. A270 (1999) 27-32 

 Precipitation Reactions in a Stabilised Austenitc Stainless Steel
   J.Källqvist
   Licenciate thesis, Chalmers University of Technology, 1999
 

Detailed microstructure of a stabilised austenitic stainless steel after high temperature heat treatment
 J Källqvist and H-O Andrén
 Proc. 14th ICEM, Cancun, Mexico, Eds. H A C Benavides and M J Yacamán
  (1998) Vol 2 pp 177­178