| article html file updated | 29 August 2025 23:28 CEST | Update | https://www.mdpi.com/1996-1073/9/8/623 |
| article html file updated | 16 July 2022 03:03 CEST | Update | N/A |
| article html file updated | 7 February 2020 13:02 CET | Update | N/A |
| article html file updated | 5 May 2019 07:39 CEST | Update | N/A |
| article html file updated | 27 March 2019 13:04 CET | Update | N/A |
| article html file updated | 25 August 2016 11:32 CEST | Update | N/A |
| article html file updated | 11 August 2016 11:47 CEST | Update | N/A |
| article html file updated | 9 August 2016 09:11 CEST | Original file | N/A |
| article xml uploaded. | 9 August 2016 09:09 CEST | Update | https://www.mdpi.com/1996-1073/9/8/623/xml |
| article pdf uploaded. | 9 August 2016 09:09 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/8/623/pdf |
