| article html file updated | 9 February 2020 07:20 CET | Update | https://www.mdpi.com/1996-1073/11/2/464 |
| article html file updated | 30 September 2019 23:24 CEST | Update | - |
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| article xml uploaded. | 23 February 2018 08:00 CET | Original file | https://www.mdpi.com/1996-1073/11/2/464/xml |
| article pdf uploaded. | 23 February 2018 08:00 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/464/pdf |
