International Institute of Welding.Fatigue fractures in welded constructions：Case studies collected by the IIW and dealing with constructions in which welding or allied processes were used．V.2.Publications de la Soudure Autogene,1979.
Fatigue fractures in welded constructions：Case studies collected by the IIW and dealing with constructions in which welding or allied processes were used．V.2
International Institute of Welding.Publications de la Soudure Autogene,1979.
Ameican Society for Testing and Materials.Single cylinder engine tests for evaluating the performance of crankease lubricants．part. 1，Caterpillar IG2 test methods, not an ASTM standard.ASTM,1979.
Ameican Society for Testing and Materials.Single cylinder engine tests for evaluating the performance of crankease lubricants．part. 2，Caterpillar IG2 test methods, not an ASTM standard.ASTM,1979.
