| article html file updated | 29 August 2025 23:59 CEST | Update | https://www.mdpi.com/1422-0067/17/12/1990 |
| article html file updated | 16 July 2022 04:01 CEST | Update | - |
| article html file updated | 7 February 2020 18:55 CET | Update | - |
| article html file updated | 4 May 2019 20:42 CEST | Update | - |
| article html file updated | 27 December 2016 10:56 CET | Update | - |
| article html file updated | 2 December 2016 00:29 CET | Original file | - |
| article xml uploaded. | 1 December 2016 09:17 CET | Original file | https://www.mdpi.com/1422-0067/17/12/1990/xml |
| article pdf uploaded. | 1 December 2016 09:17 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/1990/pdf |
