| article html file updated | 31 August 2025 14:54 CEST | Update | https://www.mdpi.com/1424-8220/20/6/1721 |
| article html file updated | 20 July 2022 23:24 CEST | Update | N/A |
| article html file updated | 1 April 2020 19:22 CEST | Update | N/A |
| article html file updated | 24 March 2020 04:03 CET | Update | N/A |
| article html file updated | 24 March 2020 04:02 CET | Update | N/A |
| article pdf uploaded. | 24 March 2020 04:01 CET | Updated version of record | https://www.mdpi.com/1424-8220/20/6/1721/pdf |
| article xml file uploaded | 24 March 2020 04:01 CET | Update | https://www.mdpi.com/1424-8220/20/6/1721/xml |
| article pdf uploaded. | 24 March 2020 04:01 CET | Updated version of record | https://www.mdpi.com/1424-8220/20/6/1721/pdf-vor |
| article xml file uploaded | 24 March 2020 04:01 CET | Update | N/A |
| article html file updated | 20 March 2020 17:09 CET | Original file | N/A |
| article pdf uploaded. | 20 March 2020 17:08 CET | Updated version of record | https://www.mdpi.com/1424-8220/20/6/1721/pdf-vor |
| article xml file uploaded | 20 March 2020 17:08 CET | Update | N/A |
| article pdf uploaded. | 19 March 2020 14:17 CET | Version of Record | https://www.mdpi.com/1424-8220/20/6/1721/pdf-vor |
| article xml file uploaded | 19 March 2020 14:17 CET | Original file | N/A |
