Cramer
M.A. Lorente , M.A. Lorente

Boon, J. J., Lorente, M. A., & Lorente, M. A. (1986). Characterization of organic matter by Pyrolysis-Gas chromatography - Mass spectrometry in selected microscopically investigated palynological samples. In M. A. Lorente & M. A. Lorente (Eds.), Palynology and Palynofacies of the Upper Tertiary in Venezuela (pp. 32–44).