| article html file updated | 30 August 2025 01:56 CEST | Update | https://www.mdpi.com/2075-4698/7/4/34 |
| article html file updated | 16 July 2022 07:53 CEST | Update | - |
| article html file updated | 8 February 2020 23:42 CET | Update | - |
| article html file updated | 29 September 2019 03:00 CEST | Update | - |
| article html file updated | 2 May 2019 09:23 CEST | Update | - |
| article html file updated | 18 April 2019 07:06 CEST | Update | - |
| article html file updated | 2 January 2018 14:11 CET | Update | - |
| article html file updated | 11 December 2017 14:46 CET | Original file | - |
| article xml uploaded. | 11 December 2017 14:45 CET | Original file | https://www.mdpi.com/2075-4698/7/4/34/xml |
| article pdf uploaded. | 11 December 2017 14:45 CET | Version of Record | https://www.mdpi.com/2075-4698/7/4/34/pdf |