| article html file updated | 29 August 2025 22:48 CEST | Update | https://www.mdpi.com/2079-9721/4/1/13 |
| article html file updated | 16 July 2022 01:55 CEST | Update | N/A |
| article html file updated | 7 February 2020 05:36 CET | Update | N/A |
| article html file updated | 5 May 2019 22:07 CEST | Update | N/A |
| article html file updated | 26 March 2019 22:52 CET | Original file | N/A |
| article pdf uploaded. | 8 March 2016 11:00 CET | Version of Record | https://www.mdpi.com/2079-9721/4/1/13/pdf |
| article xml uploaded. | 8 March 2016 11:00 CET | Original file | https://www.mdpi.com/2079-9721/4/1/13/xml |
