@ARTICLE\{IMM1988-01078, author = "K. Conradsen and B. K. Ersb{\o}ll", title = "Determination of material properties by means of the {GOP} 300", year = "1988", pages = "73-88", journal = "Materialenyt", volume = "", editor = "", number = "", publisher = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/1078-full.html" }