| article html file updated | 8 February 2020 05:11 CET | Update | https://www.mdpi.com/2297-8747/22/2/33 |
| article html file updated | 3 May 2019 23:17 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:47 CEST | Update | N/A |
| article html file updated | 6 May 2017 08:38 CEST | Original file | N/A |
| article xml uploaded. | 6 May 2017 08:36 CEST | Original file | https://www.mdpi.com/2297-8747/22/2/33/xml |
| article pdf uploaded. | 6 May 2017 08:36 CEST | Version of Record | https://www.mdpi.com/2297-8747/22/2/33/pdf |
