| article html file updated | 15 August 2026 15:32 CEST | Update | https://www.mdpi.com/2313-7673/4/1/9 |
| article html file updated | 11 February 2020 11:31 CET | Update | N/A |
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| article html file updated | 15 February 2019 13:04 CET | Original file | N/A |
| article pdf uploaded. | 15 February 2019 13:01 CET | Updated version of record | https://www.mdpi.com/2313-7673/4/1/9/pdf |
| article xml uploaded. | 15 February 2019 13:01 CET | Update | https://www.mdpi.com/2313-7673/4/1/9/xml |
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| article pdf uploaded. | 25 January 2019 11:58 CET | Version of Record | https://www.mdpi.com/2313-7673/4/1/9/pdf-vor |
| article xml file uploaded | 25 January 2019 11:58 CET | Original file | N/A |
