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- [2] Sulfur/Nitrogen Distribution in Crude Oil Fractions. Erdoel-Erdgas-Zeitschrift, 1982, 98 (05): : 169 - 175
- [3] FLUORESCENCE OF CRUDE-OIL FRACTIONS ERDOL & KOHLE ERDGAS PETROCHEMIE, 1978, 31 (08): : 372 - 372
- [5] SEPARATION, ISOLATION AND CHARACTERIZATION OF NITROGEN-COMPOUNDS FROM CRUDE-OIL AND VACUUM RESIDUES ERDOL & KOHLE ERDGAS PETROCHEMIE, 1980, 33 (11): : 529 - 529