| article html file updated | 29 August 2025 22:41 CEST | Update | https://www.mdpi.com/2220-9964/5/2/15 |
| article html file updated | 16 July 2022 01:45 CEST | Update | - |
| article html file updated | 7 February 2020 04:25 CET | Update | - |
| article html file updated | 6 May 2019 00:41 CEST | Update | - |
| article html file updated | 26 March 2019 20:25 CET | Original file | - |
| article pdf uploaded. | 15 February 2016 07:52 CET | Updated version of record | https://www.mdpi.com/2220-9964/5/2/15/pdf |
| article xml uploaded. | 15 February 2016 07:52 CET | Original file | https://www.mdpi.com/2220-9964/5/2/15/xml |
| article pdf uploaded. | 6 February 2016 10:00 CET | Version of Record | https://www.mdpi.com/2220-9964/5/2/15/pdf-vor |
