| article html file updated | 8 February 2020 22:26 CET | Update | https://www.mdpi.com/1911-8074/10/4/22 |
| article html file updated | 28 September 2019 19:26 CEST | Update | - |
| article html file updated | 2 May 2019 12:14 CEST | Update | - |
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| article html file updated | 28 November 2017 15:40 CET | Original file | - |
| article xml uploaded. | 28 November 2017 15:38 CET | Update | https://www.mdpi.com/1911-8074/10/4/22/xml |
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| article pdf uploaded. | 28 November 2017 15:38 CET | Updated version of record | https://www.mdpi.com/1911-8074/10/4/22/pdf |
| article pdf uploaded. | 28 November 2017 10:16 CET | Version of Record | - |
