Expositions on the "PPM instrument" or "SAM.2" are fundamentally applicable to "SAM.3". Even though the models vary, all the coherence meters essentially function in the same way.

• Statistic curve of distribution of electrical conductivity as a criterion of health evaluation
  Only German version available.
  
  
• Dissipative Structures of Electromagnetic Field in Living Systems
  
  
• Skin Resistance vs. Body Conductivity
  
  
• Log-Normal-Distribution of Physiological Parameters and Coherence of Biological Systems
  
  
• Electromagnetic Body vs. Chemical Body
  
  
• Stress Meter Assessment of the Degree of Relaxation in Qigong vs. Non-Qigong Meditation
  
  
• Quantitative Measurement on the Degree of Relaxation Induced by Acupuncture Operation
  
  
• Primary Impression of Colour-Puncture in Monitoring with Coherence Meter