| article html file updated | 6 February 2020 09:58 CET | Update | https://www.mdpi.com/1996-1944/7/6/4555 |
| article html file updated | 7 May 2019 13:06 CEST | Update | - |
| article html file updated | 21 March 2019 18:52 CET | Update | - |
| article html file updated | 20 August 2015 09:58 CEST | Update | - |
| article html file updated | 25 July 2014 12:13 CEST | Update | - |
| article xml file uploaded | 25 July 2014 12:13 CEST | Update | https://www.mdpi.com/1996-1944/7/6/4555/xml |
| article html file updated | 18 July 2014 04:27 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 04:27 CEST | Original file | - |
| article pdf uploaded. | 17 June 2014 11:40 CEST | Updated version of record | https://www.mdpi.com/1996-1944/7/6/4555/pdf |
| article pdf uploaded. | 16 June 2014 11:04 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/6/4555/pdf-vor |
