| article html file updated | 12 February 2020 06:47 CET | Update | https://www.mdpi.com/1911-8074/12/2/69 |
| article html file updated | 5 July 2019 06:52 CEST | Update | - |
| article html file updated | 13 May 2019 11:26 CEST | Original file | - |
| article pdf uploaded. | 13 May 2019 11:25 CEST | Updated version of record | https://www.mdpi.com/1911-8074/12/2/69/pdf |
| article xml uploaded. | 13 May 2019 11:25 CEST | Update | https://www.mdpi.com/1911-8074/12/2/69/xml |
| article xml file uploaded | 13 May 2019 11:24 CEST | Update | - |
| article pdf uploaded. | 21 April 2019 06:01 CEST | Version of Record | https://www.mdpi.com/1911-8074/12/2/69/pdf-vor |
| article xml file uploaded | 21 April 2019 06:01 CEST | Original file | - |
