| article html file updated | 31 August 2025 07:23 CEST | Update | https://www.mdpi.com/1422-0067/21/1/139 |
| article html file updated | 19 July 2022 20:55 CEST | Update | - |
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| article html file updated | 24 December 2019 12:54 CET | Original file | - |
| article pdf uploaded. | 24 December 2019 12:53 CET | Version of Record | https://www.mdpi.com/1422-0067/21/1/139/pdf |
| article xml uploaded. | 24 December 2019 12:53 CET | Update | https://www.mdpi.com/1422-0067/21/1/139/xml |
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