Authors: LIPPMAA E TEEAAR R MAREMAE E

Citation: E. Lippmaa et al., ESTONIAN DICTYONEMA SHALE AND SWEDISH ALUM SHALE - ESTIMATION OF AROMATICITIES BY C-13 NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY, Gorucie slancy, 12(4), 1995, pp. 289-296