| article html file updated | 29 August 2025 22:47 CEST | Update | https://www.mdpi.com/2077-1312/4/1/21 |
| article html file updated | 16 July 2022 01:53 CEST | Update | N/A |
| article html file updated | 7 February 2020 05:23 CET | Update | N/A |
| article html file updated | 5 May 2019 22:34 CEST | Update | N/A |
| article html file updated | 26 March 2019 22:26 CET | Update | N/A |
| article html file updated | 27 October 2017 11:16 CEST | Original file | N/A |
| article pdf uploaded. | 3 March 2016 10:19 CET | Version of Record | https://www.mdpi.com/2077-1312/4/1/21/pdf |
| article xml uploaded. | 3 March 2016 10:19 CET | Original file | https://www.mdpi.com/2077-1312/4/1/21/xml |
