| article html file updated | 30 August 2025 13:40 CEST | Update | https://www.mdpi.com/1911-8074/12/2/56 |
| article html file updated | 19 July 2022 17:13 CEST | Update | - |
| article html file updated | 12 February 2020 03:04 CET | Update | - |
| article html file updated | 17 October 2019 18:34 CEST | Update | - |
| article html file updated | 5 July 2019 06:50 CEST | Update | - |
| article html file updated | 25 April 2019 16:47 CEST | Update | - |
| article html file updated | 11 April 2019 12:40 CEST | Update | - |
| article html file updated | 10 April 2019 07:24 CEST | Update | - |
| article html file updated | 4 April 2019 11:48 CEST | Original file | - |
| article pdf uploaded. | 4 April 2019 11:47 CEST | Version of Record | https://www.mdpi.com/1911-8074/12/2/56/pdf |
| article xml uploaded. | 4 April 2019 11:47 CEST | Update | https://www.mdpi.com/1911-8074/12/2/56/xml |
| article xml file uploaded | 4 April 2019 11:47 CEST | Original file | - |
