Magyar Királyi Földtani Intézet (Budapest).
Eckel, Edwin Butt (1906-1989) Yates, Robert G. (1910- ) Granger, A. E. (1911- ) United States of America. Geological Survey.
Geologiska Föreningen (Sweden).
Mej, Lev Aleksandrovič (1822-1862) Bykov, Petr Vasil'evič (1843-1930). Oprac.
Taubenschlag, Rafał (1888-1958)
Königlich Preussische Geologische Landesanstalt und Bergakademie (Berlin).
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.
Ilberg, Johannes (1860-1930). Red. Richter, Richard Immanuel (1839-1901). Red. Gerth, Bernhard (1844-1911). Red. Cauer, Paul (1854-1921). Red.