| article html file updated | 30 August 2025 04:01 CEST | Update | https://www.mdpi.com/2076-0787/7/2/48 |
| article html file updated | 21 August 2025 20:13 CEST | Update | N/A |
| article html file updated | 9 February 2020 18:01 CET | Update | N/A |
| article html file updated | 30 April 2019 18:55 CEST | Update | N/A |
| article html file updated | 16 April 2019 19:22 CEST | Update | N/A |
| article html file updated | 30 March 2019 01:54 CET | Update | N/A |
| article html file updated | 17 May 2018 14:45 CEST | Original file | N/A |
| article pdf uploaded. | 17 May 2018 14:44 CEST | Version of Record | https://www.mdpi.com/2076-0787/7/2/48/pdf |
| article xml uploaded. | 17 May 2018 14:44 CEST | Update | https://www.mdpi.com/2076-0787/7/2/48/xml |
| article xml file uploaded | 17 May 2018 14:44 CEST | Original file | N/A |
