In 1986, Wilhelm Meyer finally published the volume, Geologie der Eifel ("Geology of the Eifel"), whose fourth, revised, edition is now regarded as the standard work on the geology of the Eifel.
En 1986, Wilhelm Meyer, finalmente, publicou o volume Geologie der Eifel, cuxa cuarta edición, revisada, considérase hoxe o traballlo estándar sobre a xeoloxía do Eifel.