| article html file updated | 29 August 2025 22:36 CEST | Update | https://www.mdpi.com/2076-0817/5/1/6 |
| article html file updated | 16 July 2022 01:37 CEST | Update | - |
| article html file updated | 7 February 2020 03:28 CET | Update | - |
| article html file updated | 6 May 2019 02:30 CEST | Update | - |
| article html file updated | 26 March 2019 18:32 CET | Update | - |
| article html file updated | 29 March 2016 07:17 CEST | Original file | - |
| article pdf uploaded. | 18 January 2016 12:25 CET | Updated version of record | https://www.mdpi.com/2076-0817/5/1/6/pdf |
| article xml uploaded. | 18 January 2016 12:25 CET | Update | https://www.mdpi.com/2076-0817/5/1/6/xml |
| article pdf uploaded. | 15 January 2016 11:31 CET | Version of Record | https://www.mdpi.com/2076-0817/5/1/6/pdf-vor |
| article xml uploaded. | 15 January 2016 11:31 CET | Original file | - |
