| article html file updated | 30 August 2025 00:04 CEST | Update | https://www.mdpi.com/2079-9284/3/4/42 |
| article html file updated | 16 July 2022 04:10 CEST | Update | - |
| article html file updated | 7 February 2020 19:43 CET | Update | - |
| article html file updated | 22 September 2019 12:07 CEST | Update | - |
| article html file updated | 4 May 2019 18:58 CEST | Update | - |
| article html file updated | 16 December 2016 05:22 CET | Original file | - |
| article xml uploaded. | 16 December 2016 05:21 CET | Original file | https://www.mdpi.com/2079-9284/3/4/42/xml |
| article pdf uploaded. | 16 December 2016 05:21 CET | Version of Record | https://www.mdpi.com/2079-9284/3/4/42/pdf |
