| article html file updated | 8 February 2020 10:56 CET | Update | https://www.mdpi.com/1996-1073/10/7/990 |
| article html file updated | 25 September 2019 22:27 CEST | Update | - |
| article html file updated | 3 May 2019 12:30 CEST | Update | - |
| article html file updated | 31 July 2017 07:15 CEST | Update | - |
| article html file updated | 13 July 2017 14:40 CEST | Update | - |
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| article html file updated | 13 July 2017 14:39 CEST | Original file | - |
| article xml uploaded. | 13 July 2017 14:37 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/990/xml |
| article pdf uploaded. | 13 July 2017 14:37 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/990/pdf |
