| article html file updated | 15 August 2026 13:38 CEST | Update | https://www.mdpi.com/1996-1073/12/1/90 |
| article html file updated | 30 August 2025 10:25 CEST | Update | N/A |
| article html file updated | 17 July 2022 19:25 CEST | Update | N/A |
| article html file updated | 11 February 2020 05:42 CET | Update | N/A |
| article html file updated | 12 October 2019 14:52 CEST | Update | N/A |
| article html file updated | 27 April 2019 13:37 CEST | Update | N/A |
| article html file updated | 13 April 2019 09:35 CEST | Update | N/A |
| article html file updated | 2 April 2019 19:47 CEST | Update | N/A |
| article html file updated | 16 January 2019 06:17 CET | Update | N/A |
| article html file updated | 28 December 2018 12:51 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2018 12:50 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/90/pdf |
| article xml uploaded. | 28 December 2018 12:50 CET | Update | https://www.mdpi.com/1996-1073/12/1/90/xml |
| article xml file uploaded | 28 December 2018 12:50 CET | Original file | N/A |
