Authors: KOTLYAR GV

Citation: Gv. Kotlyar, CORRELATIVE REFERENCE LEVELS OF THE PERMIAN, Stratigraphy and geological correlation, 5(2), 1997, pp. 131-146

Authors: LEVEN EY LEONOVA TB KOTLYAR GV

Citation: Ey. Leven et al., THE 2ND QUADALUPIAN-SYMPOSIUM AND PROBLEMS OF PERMIAN STRATIGRAPHY, Stratigraphy and geological correlation, 5(1), 1997, pp. 6-11

Authors: JIN YG WARDLAW BR GLENISTER BF KOTLYAR GV

Citation: Yg. Jin et al., PERMIAN CHRONOSTRATIGRAPHIC SUBDIVISIONS, Episodes, 20(1), 1997, pp. 10-15