| article html file updated | 30 August 2025 01:11 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1973 |
| article html file updated | 16 July 2022 06:20 CEST | Update | - |
| article html file updated | 8 February 2020 16:13 CET | Update | - |
| article html file updated | 27 September 2019 03:40 CEST | Update | - |
| article html file updated | 3 May 2019 01:55 CEST | Update | - |
| article html file updated | 30 September 2017 12:23 CEST | Update | - |
| article html file updated | 15 September 2017 09:33 CEST | Update | - |
| article xml uploaded. | 15 September 2017 09:31 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1973/xml |
| article pdf uploaded. | 15 September 2017 09:31 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/9/1973/pdf |
| article html file updated | 14 September 2017 14:43 CEST | Original file | - |
| article xml uploaded. | 14 September 2017 14:42 CEST | Original file | - |
| article pdf uploaded. | 14 September 2017 14:42 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/1973/pdf-vor |
