| article html file updated | 8 February 2020 09:56 CET | Update | https://www.mdpi.com/2075-4701/7/7/247 |
| article html file updated | 25 September 2019 17:19 CEST | Update | N/A |
| article html file updated | 3 May 2019 14:21 CEST | Update | N/A |
| article html file updated | 31 July 2017 08:30 CEST | Update | N/A |
| article html file updated | 3 July 2017 15:52 CEST | Original file | N/A |
| article xml uploaded. | 3 July 2017 15:51 CEST | Update | https://www.mdpi.com/2075-4701/7/7/247/xml |
| article pdf uploaded. | 3 July 2017 15:51 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/7/247/pdf |
