| article html file updated | 7 February 2020 23:14 CET | Update | https://www.mdpi.com/2079-4983/8/1/7 |
| article html file updated | 23 September 2019 07:05 CEST | Update | - |
| article html file updated | 4 May 2019 11:34 CEST | Update | - |
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| article html file updated | 30 March 2017 11:34 CEST | Update | - |
| article html file updated | 13 February 2017 12:45 CET | Original file | - |
| article xml uploaded. | 13 February 2017 12:44 CET | Original file | https://www.mdpi.com/2079-4983/8/1/7/xml |
| article pdf uploaded. | 13 February 2017 12:44 CET | Version of Record | https://www.mdpi.com/2079-4983/8/1/7/pdf |
