| article html file updated | 30 August 2025 03:15 CEST | Update | https://www.mdpi.com/2079-9292/7/4/44 |
| article html file updated | 16 July 2022 10:19 CEST | Update | N/A |
| article html file updated | 9 February 2020 11:43 CET | Update | N/A |
| article html file updated | 2 October 2019 02:03 CEST | Update | N/A |
| article html file updated | 1 May 2019 07:43 CEST | Update | N/A |
| article html file updated | 17 April 2019 07:41 CEST | Update | N/A |
| article html file updated | 29 March 2019 10:53 CET | Update | N/A |
| article html file updated | 1 May 2018 10:04 CEST | Update | N/A |
| article html file updated | 29 March 2018 10:25 CEST | Update | N/A |
| article xml uploaded. | 29 March 2018 10:23 CEST | Update | https://www.mdpi.com/2079-9292/7/4/44/xml |
| article pdf uploaded. | 29 March 2018 10:23 CEST | Updated version of record | https://www.mdpi.com/2079-9292/7/4/44/pdf |
| article html file updated | 29 March 2018 10:10 CEST | Original file | N/A |
| article pdf uploaded. | 29 March 2018 10:09 CEST | Version of Record | https://www.mdpi.com/2079-9292/7/4/44/pdf-vor |