| article html file updated | 6 February 2020 17:01 CET | Update | https://www.mdpi.com/2079-6374/5/2/131 |
| article html file updated | 6 May 2019 23:03 CEST | Update | - |
| article html file updated | 25 March 2019 23:37 CET | Update | - |
| article html file updated | 21 August 2015 09:25 CEST | Update | - |
| article html file updated | 7 July 2015 10:59 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 10:59 CEST | Original file | https://www.mdpi.com/2079-6374/5/2/131/xml |
| article pdf uploaded. | 26 March 2015 12:35 CET | Version of Record | https://www.mdpi.com/2079-6374/5/2/131/pdf |
