@book{EhrensteinBittmannHoffmannetal.1997, author = {Gottfried Wilhelm Ehrenstein and Eva Bittmann and Leo Hoffmann and Harald Sch{\"a}fer and Michael Schemme and Johannes Wolfrum}, title = {Duroplaste - Aush{\"a}rtung, Pr{\"u}fung, Eigenschaften}, isbn = {978-3446189171}, year = {1997}, }