| article html file updated | 11 February 2020 05:05 CET | Update | https://www.mdpi.com/2073-4344/9/1/8 |
| article html file updated | 12 October 2019 10:43 CEST | Update | - |
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| article html file updated | 24 December 2018 13:20 CET | Original file | - |
| article pdf uploaded. | 24 December 2018 11:27 CET | Version of Record | https://www.mdpi.com/2073-4344/9/1/8/pdf |
| article xml uploaded. | 24 December 2018 11:27 CET | Update | https://www.mdpi.com/2073-4344/9/1/8/xml |
| article xml file uploaded | 24 December 2018 11:27 CET | Original file | - |
