| article html file updated | 9 February 2020 06:36 CET | Update | https://www.mdpi.com/2079-6382/7/1/13 |
| article html file updated | 30 September 2019 19:11 CEST | Update | - |
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| article xml uploaded. | 13 February 2018 19:38 CET | Original file | https://www.mdpi.com/2079-6382/7/1/13/xml |
| article pdf uploaded. | 13 February 2018 19:38 CET | Version of Record | https://www.mdpi.com/2079-6382/7/1/13/pdf |
