| article html file updated | 9 February 2020 06:10 CET | Update | https://www.mdpi.com/1424-8220/18/2/531 |
| article html file updated | 30 September 2019 16:36 CEST | Update | - |
| article html file updated | 1 May 2019 19:29 CEST | Update | - |
| article html file updated | 17 April 2019 18:39 CEST | Update | - |
| article html file updated | 28 March 2019 22:21 CET | Update | - |
| article html file updated | 14 March 2018 19:34 CET | Update | - |
| article html file updated | 12 February 2018 04:03 CET | Update | - |
| article xml uploaded. | 12 February 2018 04:02 CET | Update | https://www.mdpi.com/1424-8220/18/2/531/xml |
| article xml uploaded. | 12 February 2018 04:02 CET | Update | - |
| article pdf uploaded. | 12 February 2018 04:02 CET | Updated version of record | https://www.mdpi.com/1424-8220/18/2/531/pdf |
| article html file updated | 10 February 2018 07:13 CET | Original file | - |
| article xml uploaded. | 10 February 2018 07:12 CET | Original file | - |
| article pdf uploaded. | 10 February 2018 07:12 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/531/pdf-vor |
