| article html file updated | 8 February 2020 03:18 CET | Update | https://www.mdpi.com/1424-8220/17/4/825 |
| article html file updated | 24 September 2019 06:11 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:45 CEST | Update | N/A |
| article html file updated | 29 April 2017 14:04 CEST | Update | N/A |
| article html file updated | 24 April 2017 14:23 CEST | Update | N/A |
| article xml uploaded. | 24 April 2017 14:21 CEST | Update | https://www.mdpi.com/1424-8220/17/4/825/xml |
| article pdf uploaded. | 24 April 2017 14:21 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/825/pdf |
| article html file updated | 11 April 2017 07:47 CEST | Original file | N/A |
| article pdf uploaded. | 11 April 2017 07:45 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/825/pdf-vor |
