“...Tallinna Tehnikaülikool....”
Full text available from East Europe, Central Europe Database: 03/01/2010 to present

“...Tallinna Tehnikaülikool....”
Full text available from Biological Science Database: 03/01/2010 to 12/31/2014

“...Tallinna Tehnikaülikool....”
Full text available from Engineering Database: 03/01/2010 to 12/31/2013

“...Tallinna Tehnikaülikool....”
Full text available from ABI/INFORM Global: 01/01/2018 to present
Full text available from Advanced Technologies & Aerospace Database: 01/01/2018 to present