| article html file updated | 12 August 2026 22:11 CEST | Update | https://www.mdpi.com/2073-4395/4/1/74 |
| article html file updated | 6 February 2020 07:01 CET | Update | N/A |
| article html file updated | 21 March 2019 11:44 CET | Update | N/A |
| article html file updated | 19 August 2015 19:05 CEST | Original file | N/A |
| article pdf uploaded. | 27 January 2014 19:28 CET | Version of Record | https://www.mdpi.com/2073-4395/4/1/74/pdf |
