5
9
11
12
13
Full text available from Engineering Database: 04/22/2013 to present
Electronic Journal
14
Full text available from Research Library: 03/14/2011 to present
Electronic Journal
15
Full text available from ABI/INFORM Trade & Industry: 12/31/2018 to present
Electronic Journal
18
Published 1995
Full text available from Advanced Technologies & Aerospace Database: 01/01/2004 to 07/31/2007
Electronic Journal