| article html file updated | 12 August 2026 18:59 CEST | Update | https://www.mdpi.com/1996-1944/6/4/1434 |
| article html file updated | 6 February 2020 01:22 CET | Update | N/A |
| article html file updated | 8 May 2019 06:35 CEST | Update | N/A |
| article html file updated | 20 March 2019 20:38 CET | Update | N/A |
| article html file updated | 28 December 2016 06:31 CET | Original file | N/A |
| article pdf uploaded. | 8 April 2013 17:31 CEST | Updated version of record | https://www.mdpi.com/1996-1944/6/4/1434/pdf |
| article pdf uploaded. | 3 April 2013 15:20 CEST | Version of Record | https://www.mdpi.com/1996-1944/6/4/1434/pdf-vor |
