| article html file updated | 31 August 2025 14:27 CEST | Update | https://www.mdpi.com/1422-0067/21/6/1989 |
| article html file updated | 20 July 2022 22:56 CEST | Update | - |
| article html file updated | 2 April 2020 02:17 CEST | Update | - |
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| article pdf uploaded. | 14 March 2020 11:15 CET | Version of Record | https://www.mdpi.com/1422-0067/21/6/1989/pdf |
| article xml uploaded. | 14 March 2020 11:15 CET | Update | https://www.mdpi.com/1422-0067/21/6/1989/xml |
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