| article html file updated | 31 August 2025 15:15 CEST | Update | https://www.mdpi.com/1422-0067/21/6/2221 |
| article html file updated | 20 July 2022 23:44 CEST | Update | - |
| article html file updated | 2 April 2020 04:46 CEST | Update | - |
| article html file updated | 23 March 2020 16:21 CET | Original file | - |
| article pdf uploaded. | 23 March 2020 16:19 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/6/2221/pdf |
| article xml uploaded. | 23 March 2020 16:19 CET | Update | https://www.mdpi.com/1422-0067/21/6/2221/xml |
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