| article html file updated | 7 February 2020 09:41 CET | Update | https://www.mdpi.com/2079-6382/5/2/20 |
| article html file updated | 5 May 2019 13:51 CEST | Update | - |
| article html file updated | 27 March 2019 06:33 CET | Update | - |
| article html file updated | 1 July 2016 08:21 CEST | Update | - |
| article html file updated | 3 June 2016 08:51 CEST | Original file | - |
| article xml uploaded. | 3 June 2016 08:50 CEST | Update | https://www.mdpi.com/2079-6382/5/2/20/xml |
| article pdf uploaded. | 3 June 2016 08:50 CEST | Version of Record | https://www.mdpi.com/2079-6382/5/2/20/pdf |
