| article html file updated | 31 August 2025 11:40 CEST | Update | https://www.mdpi.com/2313-0105/6/1/12 |
| article html file updated | 20 July 2022 20:11 CEST | Update | N/A |
| article html file updated | 2 April 2020 07:20 CEST | Update | N/A |
| article html file updated | 6 March 2020 07:52 CET | Original file | N/A |
| article pdf uploaded. | 6 March 2020 05:16 CET | Updated version of record | https://www.mdpi.com/2313-0105/6/1/12/pdf |
| article xml uploaded. | 6 March 2020 05:16 CET | Update | https://www.mdpi.com/2313-0105/6/1/12/xml |
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| article pdf uploaded. | 14 February 2020 11:53 CET | Version of Record | https://www.mdpi.com/2313-0105/6/1/12/pdf-vor |
| article xml file uploaded | 14 February 2020 11:53 CET | Original file | N/A |
