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Continue to ChatINVESTIGATION OF PYRIDINE EXTRACTS AND RESIDUES OF COALS BY SOLID-STATE C-13 NMR-SPECTROSCOPY - https://avesis.cu.edu.tr/yayin/0723f2df-101a-4574-a57d-4308415ea6a6/investigation-of-pyridine-extracts-and-residues-of-coals-by-solid-state-c-13-nmr-spectroscopy