| article html file updated | 7 February 2020 13:02 CET | Update | https://www.mdpi.com/2310-2861/2/3/21 |
| article html file updated | 21 September 2019 22:37 CEST | Update | N/A |
| article html file updated | 5 May 2019 07:38 CEST | Update | N/A |
| article html file updated | 27 March 2019 13:05 CET | Update | N/A |
| article html file updated | 11 August 2016 11:47 CEST | Update | N/A |
| article html file updated | 9 August 2016 08:54 CEST | Original file | N/A |
| article xml uploaded. | 9 August 2016 08:53 CEST | Original file | https://www.mdpi.com/2310-2861/2/3/21/xml |
| article pdf uploaded. | 9 August 2016 08:53 CEST | Version of Record | https://www.mdpi.com/2310-2861/2/3/21/pdf |
