| article html file updated | 9 February 2020 05:52 CET | Update | https://www.mdpi.com/2076-0760/7/2/24 |
| article html file updated | 30 September 2019 14:49 CEST | Update | - |
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| article html file updated | 7 February 2018 16:27 CET | Original file | - |
| article xml uploaded. | 7 February 2018 16:26 CET | Original file | https://www.mdpi.com/2076-0760/7/2/24/xml |
| article pdf uploaded. | 7 February 2018 16:26 CET | Version of Record | https://www.mdpi.com/2076-0760/7/2/24/pdf |
