| article html file updated | 9 February 2020 22:01 CET | Update | https://www.mdpi.com/1424-8220/18/6/1970 |
| article html file updated | 4 October 2019 17:49 CEST | Update | - |
| article html file updated | 30 April 2019 09:33 CEST | Update | - |
| article html file updated | 16 April 2019 09:55 CEST | Update | - |
| article html file updated | 16 April 2019 04:47 CEST | Update | - |
| article html file updated | 30 March 2019 12:12 CET | Update | - |
| article html file updated | 20 June 2018 11:30 CEST | Update | - |
| article xml uploaded. | 20 June 2018 11:28 CEST | Update | https://www.mdpi.com/1424-8220/18/6/1970/xml |
| article pdf uploaded. | 20 June 2018 11:28 CEST | Updated version of record | https://www.mdpi.com/1424-8220/18/6/1970/pdf |
| article html file updated | 19 June 2018 13:24 CEST | Original file | - |
| article pdf uploaded. | 19 June 2018 13:22 CEST | Version of Record | https://www.mdpi.com/1424-8220/18/6/1970/pdf-vor |
| article xml file uploaded | 19 June 2018 13:22 CEST | Original file | - |
