| article html file updated | 8 February 2020 10:48 CET | Update | https://www.mdpi.com/1996-1073/10/7/981 |
| article html file updated | 25 September 2019 21:38 CEST | Update | - |
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| article html file updated | 31 July 2017 07:13 CEST | Update | - |
| article html file updated | 12 July 2017 13:41 CEST | Original file | - |
| article xml uploaded. | 12 July 2017 13:39 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/981/xml |
| article pdf uploaded. | 12 July 2017 13:39 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/981/pdf |
