| article html file updated | 29 August 2025 22:57 CEST | Update | https://www.mdpi.com/2073-4395/6/2/23 |
| article html file updated | 16 July 2022 02:09 CEST | Update | - |
| article html file updated | 7 February 2020 07:08 CET | Update | - |
| article html file updated | 5 May 2019 18:54 CEST | Update | - |
| article html file updated | 27 March 2019 01:37 CET | Update | - |
| article html file updated | 30 June 2016 07:40 CEST | Update | - |
| article html file updated | 12 April 2016 10:42 CEST | Original file | - |
| article xml uploaded. | 12 April 2016 10:41 CEST | Original file | https://www.mdpi.com/2073-4395/6/2/23/xml |
| article pdf uploaded. | 12 April 2016 10:41 CEST | Version of Record | https://www.mdpi.com/2073-4395/6/2/23/pdf |
