| article html file updated | 11 February 2020 05:55 CET | Update | https://www.mdpi.com/2073-4352/9/1/21 |
| article html file updated | 12 October 2019 16:24 CEST | Update | N/A |
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| article html file updated | 30 December 2018 07:13 CET | Original file | N/A |
| article pdf uploaded. | 30 December 2018 07:11 CET | Version of Record | https://www.mdpi.com/2073-4352/9/1/21/pdf |
| article xml uploaded. | 30 December 2018 07:11 CET | Update | https://www.mdpi.com/2073-4352/9/1/21/xml |
| article xml file uploaded | 30 December 2018 07:11 CET | Original file | N/A |