| article html file updated | 30 August 2025 10:00 CEST | Update | https://www.mdpi.com/2079-9268/8/4/50 |
| article html file updated | 17 July 2022 16:07 CEST | Update | N/A |
| article html file updated | 11 February 2020 03:27 CET | Update | N/A |
| article html file updated | 12 October 2019 00:39 CEST | Update | N/A |
| article html file updated | 27 April 2019 18:42 CEST | Update | N/A |
| article html file updated | 13 April 2019 14:37 CEST | Update | N/A |
| article html file updated | 2 April 2019 14:01 CEST | Update | N/A |
| article html file updated | 18 December 2018 02:43 CET | Update | N/A |
| article pdf uploaded. | 18 December 2018 02:42 CET | Updated version of record | https://www.mdpi.com/2079-9268/8/4/50/pdf |
| article xml uploaded. | 18 December 2018 02:42 CET | Update | https://www.mdpi.com/2079-9268/8/4/50/xml |
| article xml file uploaded | 18 December 2018 02:42 CET | Update | N/A |
| article html file updated | 15 December 2018 10:37 CET | Original file | N/A |
| article pdf uploaded. | 15 December 2018 10:35 CET | Version of Record | https://www.mdpi.com/2079-9268/8/4/50/pdf-vor |
| article xml uploaded. | 15 December 2018 10:35 CET | Update | N/A |
| article xml file uploaded | 15 December 2018 10:35 CET | Original file | N/A |
