| article html file updated | 9 February 2020 06:38 CET | Update | https://www.mdpi.com/2073-4395/8/2/19 |
| article html file updated | 30 September 2019 19:23 CEST | Update | - |
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| article html file updated | 14 March 2018 14:51 CET | Update | - |
| article html file updated | 14 February 2018 09:00 CET | Original file | - |
| article xml uploaded. | 14 February 2018 08:59 CET | Original file | https://www.mdpi.com/2073-4395/8/2/19/xml |
| article pdf uploaded. | 14 February 2018 08:59 CET | Version of Record | https://www.mdpi.com/2073-4395/8/2/19/pdf |
