| article html file updated | 29 August 2025 23:02 CEST | Update | https://www.mdpi.com/2077-1312/4/2/32 |
| article html file updated | 16 July 2022 02:18 CEST | Update | - |
| article html file updated | 7 February 2020 08:08 CET | Update | - |
| article html file updated | 5 May 2019 16:53 CEST | Update | - |
| article html file updated | 27 March 2019 03:38 CET | Update | - |
| article html file updated | 27 October 2017 11:18 CEST | Update | - |
| article html file updated | 4 May 2016 07:53 CEST | Original file | - |
| article xml uploaded. | 4 May 2016 07:52 CEST | Original file | https://www.mdpi.com/2077-1312/4/2/32/xml |
| article pdf uploaded. | 4 May 2016 07:52 CEST | Version of Record | https://www.mdpi.com/2077-1312/4/2/32/pdf |