| article html file updated | 30 August 2025 07:23 CEST | Update | https://www.mdpi.com/2076-0752/7/4/56 |
| article html file updated | 17 July 2022 03:52 CEST | Update | - |
| article html file updated | 10 February 2020 13:34 CET | Update | - |
| article html file updated | 29 April 2019 00:37 CEST | Update | - |
| article html file updated | 14 April 2019 19:55 CEST | Update | - |
| article html file updated | 1 April 2019 00:31 CEST | Update | - |
| article html file updated | 26 December 2018 08:48 CET | Update | - |
| article html file updated | 30 September 2018 07:32 CEST | Original file | - |
| article pdf uploaded. | 30 September 2018 07:31 CEST | Version of Record | https://www.mdpi.com/2076-0752/7/4/56/pdf |
| article xml uploaded. | 30 September 2018 07:31 CEST | Update | https://www.mdpi.com/2076-0752/7/4/56/xml |
| article xml file uploaded | 30 September 2018 07:31 CEST | Original file | - |
