| article html file updated | 14 August 2026 21:04 CEST | Update | https://www.mdpi.com/1999-5903/10/1/9 |
| article html file updated | 9 February 2020 03:03 CET | Update | N/A |
| article html file updated | 29 September 2019 22:02 CEST | Update | N/A |
| article html file updated | 2 May 2019 02:15 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:30 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:34 CET | Update | N/A |
| article html file updated | 1 February 2018 13:16 CET | Update | N/A |
| article html file updated | 15 January 2018 07:02 CET | Original file | N/A |
| article xml uploaded. | 15 January 2018 07:01 CET | Update | https://www.mdpi.com/1999-5903/10/1/9/xml |
| article xml uploaded. | 15 January 2018 07:00 CET | Original file | N/A |
| article pdf uploaded. | 15 January 2018 07:00 CET | Version of Record | https://www.mdpi.com/1999-5903/10/1/9/pdf |
