| article html file updated | 31 August 2025 05:14 CEST | Update | https://www.mdpi.com/2073-4344/9/12/994 |
| article html file updated | 19 July 2022 23:00 CEST | Update | N/A |
| article html file updated | 14 February 2020 13:30 CET | Update | N/A |
| article html file updated | 30 December 2019 16:48 CET | Update | N/A |
| article html file updated | 19 December 2019 10:29 CET | Update | N/A |
| article pdf uploaded. | 19 December 2019 10:28 CET | Updated version of record | https://www.mdpi.com/2073-4344/9/12/994/pdf |
| article xml uploaded. | 19 December 2019 10:28 CET | Update | https://www.mdpi.com/2073-4344/9/12/994/xml |
| article xml file uploaded | 19 December 2019 10:27 CET | Update | N/A |
| article html file updated | 27 November 2019 12:31 CET | Original file | N/A |
| article pdf uploaded. | 27 November 2019 10:28 CET | Version of Record | https://www.mdpi.com/2073-4344/9/12/994/pdf-vor |
| article xml uploaded. | 27 November 2019 10:28 CET | Update | N/A |
| article xml file uploaded | 27 November 2019 10:28 CET | Original file | N/A |