| article html file updated | 29 August 2025 23:29 CEST | Update | https://www.mdpi.com/2227-7390/4/3/52 |
| article html file updated | 16 July 2022 03:06 CEST | Update | - |
| article html file updated | 7 February 2020 13:20 CET | Update | - |
| article html file updated | 5 May 2019 07:07 CEST | Update | - |
| article html file updated | 27 March 2019 13:38 CET | Update | - |
| article html file updated | 28 September 2016 11:31 CEST | Update | - |
| article html file updated | 15 August 2016 11:18 CEST | Original file | - |
| article xml uploaded. | 15 August 2016 11:17 CEST | Original file | https://www.mdpi.com/2227-7390/4/3/52/xml |
| article pdf uploaded. | 15 August 2016 11:17 CEST | Version of Record | https://www.mdpi.com/2227-7390/4/3/52/pdf |