ASEA research. number 4, august 1960... 

 - Asea, Västeras, [Suecia] : Allmänna Svenska Elektriska Aktiebolaget 
 - 130 p. 
<br/><br/> Contenido: Notch sensitivity in steel / Erik Agerman. -- Th-e adhesion problem in railway traction: a statistical appro-ach / Stig Johnson. -- Unified - whitworth combinations in -bolt assemblies / Age Walöen. -- The third harmonics in cur-rents and voltages when magnetising a transformer / Eric H.- Nilsson. -- Inspection by sampling / Nils Märkbäck. -- Sei-tenkräfte zwischen rad und schiene / Stig Johnsson und Per -Erik Olson.