| article html file updated | 30 August 2025 03:15 CEST | Update | https://www.mdpi.com/1999-4907/9/4/174 |
| article html file updated | 16 July 2022 10:19 CEST | Update | N/A |
| article html file updated | 9 February 2020 11:44 CET | Update | N/A |
| article html file updated | 2 October 2019 02:10 CEST | Update | N/A |
| article html file updated | 1 May 2019 07:41 CEST | Update | N/A |
| article html file updated | 17 April 2019 07:39 CEST | Update | N/A |
| article html file updated | 29 March 2019 10:55 CET | Update | N/A |
| article html file updated | 1 May 2018 11:24 CEST | Update | N/A |
| article pdf uploaded. | 5 April 2018 07:39 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/4/174/pdf |
| article html file updated | 3 April 2018 12:42 CEST | Update | N/A |
| article html file updated | 2 April 2018 23:10 CEST | Update | N/A |
| article xml uploaded. | 2 April 2018 06:01 CEST | Update | https://www.mdpi.com/1999-4907/9/4/174/xml |
| article pdf uploaded. | 2 April 2018 06:01 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/4/174/pdf-vor |
| article html file updated | 29 March 2018 11:00 CEST | Original file | N/A |
| article pdf uploaded. | 29 March 2018 10:59 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/4/174/pdf-vor |