1. A foam pilot in a North Sea oil reservoir: preparation for a production well treatment: SPE 28599;Aarra,1994
2. A foam pilot test aimed at reducing gas inflow in a production well at the Oseberg field;Aarra;Pet. Geosci.,1996
3. Foams for GOR control: improved stability by polymer additives;Aarra,1997
4. FAWAG: a breakthrough for EOR in the North Sea: SPE 77695;Aarra,2002
5. Aarra, M.G., Vikingstad, A.K., Skauge, A., Høiland, H., 2006. Effect of surfactant structure on foam–oil interactions — comparing low concentration of a fluorinated surfactant and an alpha olefin sulfonate in static foam tests, in PhD thesis Vikingstad, A.K., University of Bergen, 2006.