| article html file updated | 31 August 2025 07:40 CEST | Update | https://www.mdpi.com/1422-0067/21/1/221 |
| article html file updated | 19 July 2022 20:38 CEST | Update | N/A |
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| article html file updated | 28 December 2019 09:31 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2019 09:30 CET | Version of Record | https://www.mdpi.com/1422-0067/21/1/221/pdf |
| article xml uploaded. | 28 December 2019 09:30 CET | Update | https://www.mdpi.com/1422-0067/21/1/221/xml |
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