au.\*:("ROTAJ AP")
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ON THE PRINCIPLES OF THE STRATIGRAPHIC SUBDIVISION AND THE UNIFORM SCALE OF THE CARBONIFEROUS SYSTEM.ROTAY AP; ROTAJ AP.1975; IN: 7. CONGR. INT. STRATIGR. GEOL. CARBONIFERE; C.R.; KREFELD; 1971; KREFELD GEOL. LANDESAMT NORDRHEIN-WESTFALEN,1975, VOL. 4, P. 187 A 193Miscellaneous
