@misc{emeis_the_otwmethod_1991, 
author={Emeis, G.,Schafstall, H.-G.},
title={The OTW-method: an objective test procedure to measure and describe the static and dynamic characteristic of a welding power source},
year={1991},
howpublished = {conference paper,conference lecture,GKSS report: Gateshead (GB); November 17-19, 1991},
note = {Online available at: \url{} (DOI). Emeis, G.; Schafstall, H.: The OTW-method: an objective test procedure to measure and describe the static and dynamic characteristic of a welding power source. In: The Welding Institute (TWI) (Ed.): Fourth International Conference: Automated Welding Systems in Manufacturing. Gateshead (GB). 1991.}}