| article html file updated | 12 August 2026 23:13 CEST | Update | https://www.mdpi.com/2073-4395/4/1/167 |
| article html file updated | 6 February 2020 08:05 CET | Update | N/A |
| article html file updated | 21 March 2019 14:20 CET | Update | N/A |
| article html file updated | 20 August 2015 00:43 CEST | Original file | N/A |
| article pdf uploaded. | 25 March 2014 08:41 CET | Updated version of record | https://www.mdpi.com/2073-4395/4/1/167/pdf |
| article pdf uploaded. | 24 March 2014 08:56 CET | Updated version of record | https://www.mdpi.com/2073-4395/4/1/167/pdf-vor |
| article pdf uploaded. | 21 March 2014 15:16 CET | Version of Record | https://www.mdpi.com/2073-4395/4/1/167/pdf-vor |
