| article html file updated | 5 February 2020 14:32 CET | Update | https://www.mdpi.com/2073-4336/1/2/117 |
| article html file updated | 9 May 2019 06:20 CEST | Update | - |
| article html file updated | 20 March 2019 00:28 CET | Update | - |
| article html file updated | 20 July 2017 11:35 CEST | Update | - |
| article html file updated | 20 July 2017 11:34 CEST | Update | - |
| article html file updated | 20 July 2017 11:32 CEST | Original file | - |
| article xml uploaded. | 20 July 2017 11:30 CEST | Original file | https://www.mdpi.com/2073-4336/1/2/117/xml |
| Correction published | 21 July 2010 00:00 CEST | Correction | http://www.mdpi.com/2073-4336/1/3/221 |
