| article html file updated | 8 February 2020 08:37 CET | Update | https://www.mdpi.com/2304-6767/5/2/20 |
| article html file updated | 25 September 2019 10:12 CEST | Update | - |
| article html file updated | 3 May 2019 16:50 CEST | Update | - |
| article html file updated | 19 June 2017 06:59 CEST | Update | - |
| article xml uploaded. | 19 June 2017 06:58 CEST | Update | https://www.mdpi.com/2304-6767/5/2/20/xml |
| article pdf uploaded. | 19 June 2017 06:58 CEST | Updated version of record | https://www.mdpi.com/2304-6767/5/2/20/pdf |
| article html file updated | 18 June 2017 22:31 CEST | Original file | - |
