Effect of three farming systems (bio-dynamic, bio-organic, conventional) on yield and quality of beetroot (Beta vulgaris L. var. esculenta L.) in a seven year crop rotation Pfiffner, L., Niggli, U., Velimirov, A., Boltzmann, L., Balzer, U., Balzer, F., & Besson, J. M.. (1993). Effect of three farming systems (bio-dynamic, bio-organic, conventional) on yield and quality of beetroot (Beta vulgaris L. var. esculenta L.) in a seven year crop rotation. Acta Horticulturae, 339, 11-32.
Is the copper chloride crystallization method a test for detecting formative forces in living materials? Hummel, R. E. (1991). Is the copper chloride crystallization method a test for detecting formative forces in living materials?. Newsletter of the Society for the Evolution of Science. Recuperado a partir de https://www.biodynamics.com/files/Hummel1991%5Bsmallpdf.com%5D.pdf
Standardization and validation of the visual evaluation of biocrystallizations Huber, M., Andersen, J. O., Kahl, J., Busscher, N., Doesburg, P., Mergardt, G., et al.. (2010). Standardization and validation of the visual evaluation of biocrystallizations. Biological Agriculture and Horticulture, 27, 25-40. Recuperado a partir de http://www.tandfonline.com/doi/abs/10.1080/01448765.2010.10510428
The bio-crystallization method as a new indicator for organic food-quality Busscher, N., Kahl, J., & Ploeger, A.. (2011). The bio-crystallization method as a new indicator for organic food-quality. En First International Conference on Organic Food Quality and Health Research. Prague, Czech Republic: Institute of Chemical Technology, Prague. Recuperado a partir de http://www.fqh2011.org/book-abstracts.html?L=0
Sensitive Crystallizations Coderey, P. (2009). Sensitive Crystallizations. Biodynamics, (270), 36-37.