| article html file updated | 11 February 2020 21:33 CET | Update | https://www.mdpi.com/2227-9040/7/1/12 |
| article html file updated | 16 October 2019 10:40 CEST | Update | - |
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| article html file updated | 12 March 2019 09:00 CET | Original file | - |
| article pdf uploaded. | 12 March 2019 08:59 CET | Version of Record | https://www.mdpi.com/2227-9040/7/1/12/pdf |
| article xml uploaded. | 12 March 2019 08:59 CET | Update | https://www.mdpi.com/2227-9040/7/1/12/xml |
| article xml file uploaded | 12 March 2019 08:59 CET | Original file | - |