| article html file updated | 9 February 2020 11:03 CET | Update | https://www.mdpi.com/2079-6374/8/2/28 |
| article html file updated | 1 October 2019 22:12 CEST | Update | - |
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| article html file updated | 17 April 2019 09:05 CEST | Update | - |
| article html file updated | 29 March 2019 09:19 CET | Update | - |
| article html file updated | 23 March 2018 17:35 CET | Original file | - |
| article xml uploaded. | 23 March 2018 17:34 CET | Original file | https://www.mdpi.com/2079-6374/8/2/28/xml |
| article pdf uploaded. | 23 March 2018 17:34 CET | Version of Record | https://www.mdpi.com/2079-6374/8/2/28/pdf |
