CARBON ISOTOPES IN PETROLEUM GEOCHEMISTRYSTAHL WJ.1979; LECTURES IN ISOTOPE GEOLOGY; DEU/USA; BERLIN, HEIDELBERG, NEW YORK: SPRINGER; DA. 1979; PP. 274-282; BIBL. 18 REF.; 6 ILL.Book Chapter

CARBON AND NITROGEN ISOTOPES IN HYDROCARBON RESEARCH AND EXPLORATION.STAHL WJ.1977; CHEM. GEOL.; NETHERL.; DA. 1977; VOL. 20; NO 2; PP. 121-149; BIBL. 1 P. 1/2; 27 ILL.Article

BACTERIAL DEGRADATION OF CRUDE OILS. IDENTIFICATION BY CARBON ISOTROPESSTAHL WJ.1979; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; USA; DA. 1979; VOL. 63; NO 4; PP. 701Conference Paper

ZUR METHODIK DER 12C/13C -ISOTOPEN-UNTERSUCHUNGEN AN ERDGASEN.STAHL WJ.1967; ERDOEL UND KOHLE; ALL; 1967(8), VOL. 20, NUM. 0008, P. 556 A 559Miscellaneous

CARBON ISOTOPE MEASUREMENTS OF HYDROCARBONS ADSORBED IN NEAR-SURFACE SEDIMENT SAMPLESFABER E; STAHL WJ.1979; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; USA; DA. 1979; VOL. 63; NO 4; PP. 698Conference Paper

CARBON ISOTOPES - NEW TOOL IN HYDROCARBON CORRELATION AND EXPLORATIONSTAHL WJ; FABER E; CAREY BD et al.1979; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; USA; DA. 1979; VOL. 63; NO 3; PP. 532Conference Paper

ORIGIN OF GAS ADSORBED IN NEAR-SURFACE SEDIMENTS IDENTIFIED BY CARBON ISOTOPESSTAHL WJ; FABER E; CAREY BD et al.1979; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; USA; DA. 1979; VOL. 63; NO 4; PP. 701Conference Paper