| article html file updated | 30 August 2025 00:28 CEST | Update | https://www.mdpi.com/1660-3397/15/2/52 |
| article html file updated | 16 July 2022 04:59 CEST | Update | - |
| article html file updated | 7 February 2020 23:58 CET | Update | - |
| article html file updated | 23 September 2019 11:09 CEST | Update | - |
| article html file updated | 4 May 2019 10:05 CEST | Update | - |
| article html file updated | 2 March 2017 09:40 CET | Update | - |
| article html file updated | 22 February 2017 10:21 CET | Original file | - |
| article xml uploaded. | 22 February 2017 10:20 CET | Update | https://www.mdpi.com/1660-3397/15/2/52/xml |
| article xml uploaded. | 22 February 2017 10:19 CET | Original file | - |
| article pdf uploaded. | 22 February 2017 10:19 CET | Version of Record | https://www.mdpi.com/1660-3397/15/2/52/pdf |