Biophoton Research (to view click on link)

http://www.biontologyarizona.com/dr-fritz-albert-popp/

http://www.ncbi.nlm.nih.gov/pubmed/15947465

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2957070/

http://www.ncbi.nlm.nih.gov/pubmed/19754267

http://www.ncbi.nlm.nih.gov/pubmed/15298728

http://www.ncbi.nlm.nih.gov/pubmed/15244269

http://www.ncbi.nlm.nih.gov/pubmed/15244265

http://www.rense.com/general50/buiop.htm

http://www.transpersonal.de/mbischof/englisch/webbookeng.htm

http://14.139.47.15/bitstream/123456789/17055/1/IJEB%2041%285%29%20440-445.pdf

https://www.ncbi.nlm.nih.gov/pubmed/15298728

https://www.ncbi.nlm.nih.gov/pubmed/24360927

https://www.ncbi.nlm.nih.gov/pubmed/24360927

https://www.ncbi.nlm.nih.gov/pubmed/21185536