| article html file updated | 30 August 2025 10:20 CEST | Update | https://www.mdpi.com/1996-1073/12/1/61 |
| article html file updated | 17 July 2022 18:47 CEST | Update | - |
| article html file updated | 11 February 2020 05:17 CET | Update | - |
| article html file updated | 12 October 2019 11:59 CEST | Update | - |
| article html file updated | 27 April 2019 14:37 CEST | Update | - |
| article html file updated | 13 April 2019 10:33 CEST | Update | - |
| article html file updated | 2 April 2019 18:43 CEST | Update | - |
| article html file updated | 16 January 2019 05:23 CET | Update | - |
| article html file updated | 25 December 2018 13:44 CET | Original file | - |
| article pdf uploaded. | 25 December 2018 13:43 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/61/pdf |
| article xml uploaded. | 25 December 2018 13:43 CET | Update | https://www.mdpi.com/1996-1073/12/1/61/xml |
| article xml file uploaded | 25 December 2018 13:43 CET | Original file | - |
