Authors Year Title
Becker, Hartenfels & S Hellig, G Schreiber 2016 The “Nehden Goniatite Shale” (lower Famennian, Brilon Reef Complex, NE Rhenish Massif)
Münster. Forsch. Geol. Paläont., vol. 108, pp. 179-195 (Münster)