| article html file updated | 9 February 2020 03:36 CET | Update | https://www.mdpi.com/2075-4450/9/1/8 |
| article html file updated | 30 September 2019 01:20 CEST | Update | - |
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| article html file updated | 27 March 2018 14:31 CEST | Update | - |
| article html file updated | 19 January 2018 08:30 CET | Original file | - |
| article xml uploaded. | 19 January 2018 08:29 CET | Original file | https://www.mdpi.com/2075-4450/9/1/8/xml |
| article pdf uploaded. | 19 January 2018 08:29 CET | Version of Record | https://www.mdpi.com/2075-4450/9/1/8/pdf |
