| article html file updated | 30 August 2025 01:22 CEST | Update | https://www.mdpi.com/2225-1146/5/4/44 |
| article html file updated | 16 July 2022 06:41 CEST | Update | - |
| article html file updated | 8 February 2020 17:54 CET | Update | - |
| article html file updated | 27 September 2019 14:08 CEST | Update | - |
| article html file updated | 2 May 2019 22:32 CEST | Update | - |
| article html file updated | 14 March 2018 10:18 CET | Update | - |
| article html file updated | 6 October 2017 13:06 CEST | Original file | - |
| article xml uploaded. | 6 October 2017 13:05 CEST | Original file | https://www.mdpi.com/2225-1146/5/4/44/xml |
| article pdf uploaded. | 6 October 2017 13:05 CEST | Version of Record | https://www.mdpi.com/2225-1146/5/4/44/pdf |
