| article html file updated | 31 August 2025 07:04 CEST | Update | https://www.mdpi.com/1422-0067/21/1/71 |
| article html file updated | 19 July 2022 21:12 CEST | Update | N/A |
| article html file updated | 14 February 2020 20:25 CET | Update | N/A |
| article html file updated | 16 January 2020 08:51 CET | Update | N/A |
| article html file updated | 3 January 2020 11:33 CET | Update | N/A |
| article xml uploaded. | 3 January 2020 11:32 CET | Update | https://www.mdpi.com/1422-0067/21/1/71/xml |
| article pdf uploaded. | 3 January 2020 11:15 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/1/71/pdf |
| article xml file uploaded | 3 January 2020 11:15 CET | Update | N/A |
| article html file updated | 20 December 2019 11:40 CET | Original file | N/A |
| article pdf uploaded. | 20 December 2019 11:39 CET | Version of Record | https://www.mdpi.com/1422-0067/21/1/71/pdf-vor |
| article xml uploaded. | 20 December 2019 11:39 CET | Update | N/A |
| article xml file uploaded | 20 December 2019 11:39 CET | Original file | N/A |