| article html file updated | 29 August 2025 23:40 CEST | Update | https://www.mdpi.com/1999-4893/9/4/63 |
| article html file updated | 16 July 2022 03:27 CEST | Update | N/A |
| article html file updated | 7 February 2020 15:31 CET | Update | N/A |
| article html file updated | 5 May 2019 03:08 CEST | Update | N/A |
| article html file updated | 28 December 2016 05:09 CET | Update | N/A |
| article html file updated | 24 September 2016 13:47 CEST | Original file | N/A |
| article xml uploaded. | 24 September 2016 13:46 CEST | Original file | https://www.mdpi.com/1999-4893/9/4/63/xml |
| article pdf uploaded. | 24 September 2016 13:46 CEST | Version of Record | https://www.mdpi.com/1999-4893/9/4/63/pdf |
