1. Pfeiffer, E.E.: Chromatography applied to quality testing, Biodynamic Literature, Wyoming, Island, pp. 1–44 (1984)
2. Perumal, K., Vatsala, T.M.: Utilisation of local alternative materials in cow horn manures (BD500): A case study on biodynamic vegetable cultivation. Journal of Biodynamic Agriculture - Australia 52, 16–21 (2002)
3. Bio Dynamic Association of India,
http://www.biodynamics.in/chrom.htm
4. Saritha, V., Joseph, M.M., Das, S., Khemani, D.: Chromatogram Image Pre-Processing and Feature Extraction for Automatic Soil Analysis. In: Proceedings of the International Conference on Computing: Theory and Applications ICCTA 2007, Kolkata, India, March 5-7 (2007)
5. A tutorial on Color Based Segmentation using CIELAB Colorspace,
http://www.mathwork-s.com/products/demos/image/color_seg_lab/ipexfabric.html