WebjörnJ.Schrauben von Hand vorspannen?Technische Rundschau TR 46, 13 November 1984, 74–75 (Hallwag Verlag, Bern, Switzerland).
2.
WebjörnJ.The classification of joint tightness. Second International Symposium on Fluid sealing, Centre Technique des Industries Mecaniques, 18–20 September 1990, pp. 91–97, La Baule, France.
3.
WebjörnJ.The effect of thermal shock in pipe connections with compact flanges. ASME paper 83-WA/PVP-6.