| article html file updated | 9 February 2020 06:00 CET | Update | https://www.mdpi.com/1424-8220/18/2/518 |
| article html file updated | 30 September 2019 15:37 CEST | Update | - |
| article html file updated | 1 May 2019 19:52 CEST | Update | - |
| article html file updated | 17 April 2019 18:59 CEST | Update | - |
| article html file updated | 28 March 2019 21:58 CET | Update | - |
| article html file updated | 14 March 2018 19:30 CET | Update | - |
| article html file updated | 10 February 2018 03:45 CET | Original file | - |
| article xml uploaded. | 10 February 2018 03:43 CET | Original file | https://www.mdpi.com/1424-8220/18/2/518/xml |
| article pdf uploaded. | 10 February 2018 03:43 CET | Updated version of record | https://www.mdpi.com/1424-8220/18/2/518/pdf |
| article pdf uploaded. | 8 February 2018 17:33 CET | Updated version of record | https://www.mdpi.com/1424-8220/18/2/518/pdf-vor |
| article pdf uploaded. | 8 February 2018 17:31 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/518/pdf-vor |
