| article html file updated | 29 August 2025 22:42 CEST | Update | https://www.mdpi.com/2078-1547/7/1/4 |
| article html file updated | 20 August 2025 22:13 CEST | Update | - |
| article html file updated | 16 July 2022 01:46 CEST | Update | - |
| article html file updated | 7 February 2020 04:31 CET | Update | - |
| article html file updated | 6 May 2019 00:26 CEST | Update | - |
| article html file updated | 26 March 2019 20:39 CET | Original file | - |
| article pdf uploaded. | 19 February 2016 05:04 CET | Updated version of record | https://www.mdpi.com/2078-1547/7/1/4/pdf |
| article xml uploaded. | 19 February 2016 05:04 CET | Update | https://www.mdpi.com/2078-1547/7/1/4/xml |
| article pdf uploaded. | 14 February 2016 11:05 CET | Version of Record | https://www.mdpi.com/2078-1547/7/1/4/pdf-vor |
| article xml uploaded. | 14 February 2016 11:05 CET | Original file | - |