1. CEDIGAZ: Underground Gas Storage in The World—2018 Status. CEDIGAZ, 19phttps://cdn2.hubspot.net/hubfs/1982707/Overview%20of%20underground%20gas%20storage%20in%20the%20world%202018%20(1).pdf
2. NaturalGas.org: Natural Gas Storagehttp://naturalgas.org/naturalgas/storage/
3. Handbook of Natural Gas Transmission and Processing. Principles and Practices;Mokhatab,2019
4. Geomechanical response to seasonal gas storage in depleted reservoirs: A case study in the Po River basin, Italy
5. Encyclopaedia of Hydrocarbons. Istituto Della Enciclopedia Italiana, 2005. Chap. 7.4 Underground Storage of Natural Gas (Franco Falzolgher)http://www.treccani.it/export/sites/default/Portale/sito/altre_aree/Tecnologia_e_Scienze_applicate/enciclopedia/inglese/inglese_vol_1/pag879-912ING3.pdf