| article html file updated | 11 February 2020 19:26 CET | Update | https://www.mdpi.com/2311-7524/5/1/21 |
| article html file updated | 15 October 2019 21:24 CEST | Update | - |
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| article html file updated | 1 March 2019 21:41 CET | Original file | - |
| article pdf uploaded. | 1 March 2019 13:11 CET | Version of Record | https://www.mdpi.com/2311-7524/5/1/21/pdf |
| article xml uploaded. | 1 March 2019 13:11 CET | Update | https://www.mdpi.com/2311-7524/5/1/21/xml |
| article xml file uploaded | 1 March 2019 13:11 CET | Original file | - |
