| article html file updated | 29 August 2025 22:41 CEST | Update | https://www.mdpi.com/2075-5309/6/1/6 |
| article html file updated | 16 July 2022 01:45 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:23 CET | Update | N/A |
| article html file updated | 6 May 2019 00:45 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:21 CET | Update | N/A |
| article html file updated | 16 June 2016 05:55 CEST | Original file | N/A |
| article pdf uploaded. | 15 February 2016 06:51 CET | Updated version of record | https://www.mdpi.com/2075-5309/6/1/6/pdf |
| article xml uploaded. | 15 February 2016 06:51 CET | Original file | https://www.mdpi.com/2075-5309/6/1/6/xml |
| article pdf uploaded. | 6 February 2016 05:00 CET | Version of Record | https://www.mdpi.com/2075-5309/6/1/6/pdf-vor |