| article html file updated | 24 December 2025 17:41 CET | Update | https://www.mdpi.com/1422-0067/21/4/1506 |
| article html file updated | 31 August 2025 12:28 CEST | Update | - |
| article html file updated | 20 July 2022 20:58 CEST | Update | - |
| article html file updated | 7 March 2020 17:32 CET | Update | - |
| article html file updated | 7 March 2020 15:41 CET | Update | - |
| article html file updated | 23 February 2020 06:37 CET | Original file | - |
| article pdf uploaded. | 23 February 2020 06:36 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/4/1506/pdf |
| article xml uploaded. | 23 February 2020 06:36 CET | Update | https://www.mdpi.com/1422-0067/21/4/1506/xml |
| article xml file uploaded | 23 February 2020 06:36 CET | Update | - |
| article pdf uploaded. | 22 February 2020 11:41 CET | Version of Record | https://www.mdpi.com/1422-0067/21/4/1506/pdf-vor |
| article xml file uploaded | 22 February 2020 11:41 CET | Original file | - |
