| article html file updated | 30 August 2025 01:45 CEST | Update | https://www.mdpi.com/2309-608X/3/4/64 |
| article html file updated | 21 August 2025 19:27 CEST | Update | - |
| article html file updated | 16 July 2022 07:31 CEST | Update | - |
| article html file updated | 8 February 2020 21:49 CET | Update | - |
| article html file updated | 28 September 2019 15:34 CEST | Update | - |
| article html file updated | 2 May 2019 13:36 CEST | Update | - |
| article html file updated | 18 April 2019 11:15 CEST | Update | - |
| article html file updated | 11 December 2018 09:00 CET | Update | - |
| article html file updated | 21 November 2017 13:28 CET | Original file | - |
| article xml uploaded. | 21 November 2017 13:27 CET | Original file | https://www.mdpi.com/2309-608X/3/4/64/xml |
| article pdf uploaded. | 21 November 2017 13:27 CET | Version of Record | https://www.mdpi.com/2309-608X/3/4/64/pdf |
