| article html file updated | 12 February 2020 03:27 CET | Update | https://www.mdpi.com/1911-8074/12/2/57 |
| article html file updated | 17 October 2019 20:42 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:50 CEST | Update | N/A |
| article html file updated | 13 May 2019 12:16 CEST | Original file | N/A |
| article pdf uploaded. | 13 May 2019 12:14 CEST | Updated version of record | https://www.mdpi.com/1911-8074/12/2/57/pdf |
| article xml uploaded. | 13 May 2019 12:14 CEST | Update | https://www.mdpi.com/1911-8074/12/2/57/xml |
| article xml file uploaded | 13 May 2019 12:14 CEST | Update | N/A |
| article pdf uploaded. | 6 April 2019 09:12 CEST | Version of Record | https://www.mdpi.com/1911-8074/12/2/57/pdf-vor |
| article xml file uploaded | 6 April 2019 09:12 CEST | Original file | N/A |
