| article html file updated | 8 February 2020 15:18 CET | Update | https://www.mdpi.com/2297-8747/22/3/39 |
| article html file updated | 26 September 2019 22:42 CEST | Update | N/A |
| article html file updated | 3 May 2019 03:37 CEST | Update | N/A |
| article html file updated | 20 September 2017 04:07 CEST | Original file | N/A |
| article xml uploaded. | 20 September 2017 04:06 CEST | Update | https://www.mdpi.com/2297-8747/22/3/39/xml |
| article xml uploaded. | 20 September 2017 04:06 CEST | Original file | N/A |
| article pdf uploaded. | 4 September 2017 15:11 CEST | Version of Record | https://www.mdpi.com/2297-8747/22/3/39/pdf |
