2014, An overview of pool and spa regulations in Mediterranean countries with a focus on the tourist industry

Mavridou A, Pappa O, Papatzitze O, Blougoura A, Drossos P

J Water Health. 2014 Sep;12(3):359-71. doi: 10.2166/wh.2014.188

https://www.ncbi.nlm.nih.gov/pubmed/25252339