| article html file updated | 9 February 2020 06:34 CET | Update | https://www.mdpi.com/2073-4425/9/2/86 |
| article html file updated | 30 September 2019 18:55 CEST | Update | - |
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| article html file updated | 14 March 2018 17:06 CET | Update | - |
| article html file updated | 13 February 2018 15:18 CET | Original file | - |
| article xml uploaded. | 13 February 2018 15:17 CET | Original file | https://www.mdpi.com/2073-4425/9/2/86/xml |
| article pdf uploaded. | 13 February 2018 15:17 CET | Version of Record | https://www.mdpi.com/2073-4425/9/2/86/pdf |
