Biodynamic Research References
                       
      
  
  
    
    
      
      
        
                                                            
    
      
  2019
Goldstein, W. A., Koepf, H. H., & Koopmans, C. J..  (2019).  
Biodynamic preparations, greater root growth and health, stress resistance, and soil organic matter increases are linked. 
Open Agriculture, 
4(1), 187-202.