| article html file updated | 9 February 2020 09:38 CET | Update | https://www.mdpi.com/2075-4663/6/1/24 |
| article html file updated | 1 October 2019 13:48 CEST | Update | - |
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| article html file updated | 13 March 2018 09:22 CET | Original file | - |
| article xml uploaded. | 13 March 2018 09:21 CET | Original file | https://www.mdpi.com/2075-4663/6/1/24/xml |
| article pdf uploaded. | 13 March 2018 09:21 CET | Version of Record | https://www.mdpi.com/2075-4663/6/1/24/pdf |
