| article html file updated | 8 February 2020 08:42 CET | Update | https://www.mdpi.com/2304-6767/5/2/21 |
| article html file updated | 25 September 2019 10:38 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:40 CEST | Update | N/A |
| article html file updated | 20 June 2017 06:13 CEST | Update | N/A |
| article xml uploaded. | 20 June 2017 06:12 CEST | Update | https://www.mdpi.com/2304-6767/5/2/21/xml |
| article pdf uploaded. | 20 June 2017 06:12 CEST | Updated version of record | https://www.mdpi.com/2304-6767/5/2/21/pdf |
| article html file updated | 19 June 2017 13:04 CEST | Original file | N/A |
