| article html file updated | 30 August 2025 02:19 CEST | Update | https://www.mdpi.com/1999-4907/9/1/45 |
| article html file updated | 21 August 2025 19:29 CEST | Update | N/A |
| article html file updated | 16 July 2022 08:40 CEST | Update | N/A |
| article html file updated | 9 February 2020 03:45 CET | Update | N/A |
| article html file updated | 30 September 2019 02:11 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:49 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:13 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:06 CET | Update | N/A |
| article html file updated | 1 February 2018 13:03 CET | Update | N/A |
| article html file updated | 20 January 2018 08:30 CET | Original file | N/A |
| article xml uploaded. | 20 January 2018 08:28 CET | Update | https://www.mdpi.com/1999-4907/9/1/45/xml |
| article xml uploaded. | 20 January 2018 08:28 CET | Original file | N/A |
| article pdf uploaded. | 20 January 2018 08:28 CET | Version of Record | https://www.mdpi.com/1999-4907/9/1/45/pdf |