**St ´ephane Lafortune, Philippe Gombert, Zbigniew Pokryszka, Elodie Lacroix, Philippe de Donato and Nevila Jozja**

Monitoring Scheme for the Detection of Hydrogen Leakage from a Deep Underground Storage. Part 1: On-Site Validation of an Experimental Protocol via the Combined Injection of Helium and Tracers into an Aquifer

Reprinted from: *Appl. Sci.* **2020**, *10*, 6058, doi:10.3390/app10176058 . . . . . . . . . . . . . . . . . **161**
