| article html file updated | 30 August 2025 02:03 CEST | Update | https://www.mdpi.com/1660-4601/15/1/6 |
| article html file updated | 16 July 2022 08:06 CEST | Update | - |
| article html file updated | 9 February 2020 00:53 CET | Update | - |
| article html file updated | 29 September 2019 09:56 CEST | Update | - |
| article html file updated | 2 May 2019 06:49 CEST | Update | - |
| article html file updated | 18 April 2019 04:43 CEST | Update | - |
| article html file updated | 28 March 2019 10:23 CET | Update | - |
| article html file updated | 1 February 2018 08:36 CET | Update | - |
| article html file updated | 31 January 2018 08:43 CET | Update | - |
| article html file updated | 22 December 2017 10:10 CET | Original file | - |
| article xml uploaded. | 22 December 2017 10:09 CET | Original file | https://www.mdpi.com/1660-4601/15/1/6/xml |
| article pdf uploaded. | 22 December 2017 10:09 CET | Version of Record | https://www.mdpi.com/1660-4601/15/1/6/pdf |