| article html file updated | 29 August 2025 23:58 CEST | Update | https://www.mdpi.com/1422-0067/17/12/1996 |
| article html file updated | 16 July 2022 04:00 CEST | Update | - |
| article html file updated | 7 February 2020 18:46 CET | Update | - |
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| article html file updated | 27 December 2016 10:57 CET | Update | - |
| article html file updated | 29 November 2016 13:28 CET | Original file | - |
| article xml uploaded. | 29 November 2016 13:27 CET | Update | https://www.mdpi.com/1422-0067/17/12/1996/xml |
| article xml uploaded. | 29 November 2016 13:27 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 13:27 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/1996/pdf |
