| article html file updated | 16 August 2026 17:42 CEST | Update | https://www.mdpi.com/1911-8074/12/4/168 |
| article html file updated | 14 February 2020 07:08 CET | Update | N/A |
| article html file updated | 31 December 2019 20:41 CET | Update | N/A |
| article html file updated | 7 November 2019 04:39 CET | Update | N/A |
| article pdf uploaded. | 7 November 2019 04:37 CET | Updated version of record | https://www.mdpi.com/1911-8074/12/4/168/pdf |
| article xml uploaded. | 7 November 2019 04:37 CET | Update | https://www.mdpi.com/1911-8074/12/4/168/xml |
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| article html file updated | 6 November 2019 10:29 CET | Original file | N/A |
| article pdf uploaded. | 6 November 2019 10:27 CET | Version of Record | https://www.mdpi.com/1911-8074/12/4/168/pdf-vor |
| article xml uploaded. | 6 November 2019 10:27 CET | Update | N/A |
| article xml file uploaded | 6 November 2019 10:27 CET | Original file | N/A |
