| article html file updated | 12 February 2020 02:18 CET | Update | https://www.mdpi.com/1911-8074/12/2/54 |
| article html file updated | 17 October 2019 14:03 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:50 CEST | Update | N/A |
| article html file updated | 14 May 2019 03:07 CEST | Original file | N/A |
| article pdf uploaded. | 14 May 2019 03:06 CEST | Updated version of record | https://www.mdpi.com/1911-8074/12/2/54/pdf |
| article xml uploaded. | 14 May 2019 03:06 CEST | Update | https://www.mdpi.com/1911-8074/12/2/54/xml |
| article xml file uploaded | 14 May 2019 03:06 CEST | Update | N/A |
| article pdf uploaded. | 1 April 2019 17:27 CEST | Version of Record | https://www.mdpi.com/1911-8074/12/2/54/pdf-vor |
| article xml file uploaded | 1 April 2019 17:27 CEST | Original file | N/A |
