| article html file updated | 17 August 2026 02:28 CEST | Update | https://www.mdpi.com/2076-0752/9/1/19 |
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| article html file updated | 23 February 2020 14:44 CET | Original file | N/A |
| article pdf uploaded. | 23 February 2020 14:42 CET | Updated version of record | https://www.mdpi.com/2076-0752/9/1/19/pdf |
| article xml uploaded. | 23 February 2020 14:42 CET | Update | https://www.mdpi.com/2076-0752/9/1/19/xml |
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| article pdf uploaded. | 10 February 2020 15:08 CET | Version of Record | https://www.mdpi.com/2076-0752/9/1/19/pdf-vor |
| article xml file uploaded | 10 February 2020 15:08 CET | Original file | N/A |