| article html file updated | 9 February 2020 08:53 CET | Update | https://www.mdpi.com/1911-8074/11/1/13 |
| article html file updated | 1 October 2019 08:17 CEST | Update | - |
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| article html file updated | 7 March 2018 09:13 CET | Original file | - |
| article xml uploaded. | 7 March 2018 09:12 CET | Original file | https://www.mdpi.com/1911-8074/11/1/13/xml |
| article pdf uploaded. | 7 March 2018 09:12 CET | Version of Record | https://www.mdpi.com/1911-8074/11/1/13/pdf |
