| article html file updated | 7 February 2020 23:42 CET | Update | https://www.mdpi.com/1660-3397/15/2/45 |
| article html file updated | 23 September 2019 09:38 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:39 CEST | Update | N/A |
| article html file updated | 2 March 2017 09:39 CET | Update | N/A |
| article html file updated | 20 February 2017 04:19 CET | Original file | N/A |
| article xml uploaded. | 20 February 2017 04:18 CET | Original file | https://www.mdpi.com/1660-3397/15/2/45/xml |
| article pdf uploaded. | 20 February 2017 04:18 CET | Updated version of record | https://www.mdpi.com/1660-3397/15/2/45/pdf |
| article pdf uploaded. | 17 February 2017 17:28 CET | Version of Record | https://www.mdpi.com/1660-3397/15/2/45/pdf-vor |
