| article html file updated | 6 February 2020 08:11 CET | Update | https://www.mdpi.com/2079-7737/3/2/243 |
| article html file updated | 7 May 2019 16:47 CEST | Update | - |
| article html file updated | 21 March 2019 14:32 CET | Update | - |
| article html file updated | 20 August 2015 01:06 CEST | Update | - |
| article html file updated | 8 July 2014 09:52 CEST | Update | - |
| article xml file uploaded | 8 July 2014 09:52 CEST | Update | https://www.mdpi.com/2079-7737/3/2/243/xml |
| article html file updated | 24 June 2014 12:02 CEST | Original file | - |
| article xml file uploaded | 24 June 2014 12:02 CEST | Original file | - |
| article pdf uploaded. | 28 March 2014 15:09 CET | Updated version of record | https://www.mdpi.com/2079-7737/3/2/243/pdf |
| article pdf uploaded. | 26 March 2014 09:31 CET | Version of Record | https://www.mdpi.com/2079-7737/3/2/243/pdf-vor |
