| article html file updated | 31 August 2025 13:55 CEST | Update | https://www.mdpi.com/2227-9032/8/1/56 |
| article html file updated | 20 July 2022 22:23 CEST | Update | - |
| article html file updated | 1 April 2020 10:51 CEST | Update | - |
| article html file updated | 9 March 2020 12:46 CET | Update | - |
| article html file updated | 9 March 2020 12:45 CET | Original file | - |
| article pdf uploaded. | 9 March 2020 12:44 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/1/56/pdf |
| article xml uploaded. | 9 March 2020 12:44 CET | Update | https://www.mdpi.com/2227-9032/8/1/56/xml |
| article xml file uploaded | 9 March 2020 12:44 CET | Update | - |
| article xml file uploaded | 9 March 2020 12:44 CET | Original file | - |
