| article html file updated | 8 February 2020 05:26 CET | Update | https://www.mdpi.com/2226-4787/5/2/25 |
| article html file updated | 24 September 2019 17:39 CEST | Update | - |
| article html file updated | 3 May 2019 22:50 CEST | Update | - |
| article html file updated | 29 June 2017 12:45 CEST | Update | - |
| article html file updated | 23 May 2017 03:56 CEST | Update | - |
| article html file updated | 9 May 2017 12:58 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 12:57 CEST | Original file | https://www.mdpi.com/2226-4787/5/2/25/xml |
| article pdf uploaded. | 9 May 2017 12:57 CEST | Version of Record | https://www.mdpi.com/2226-4787/5/2/25/pdf |
