| article html file updated | 6 February 2020 03:08 CET | Update | https://www.mdpi.com/1422-0067/14/7/14504 |
| article html file updated | 8 May 2019 03:01 CEST | Update | - |
| article html file updated | 21 March 2019 01:05 CET | Update | - |
| article html file updated | 17 June 2015 11:11 CEST | Update | - |
| article html file updated | 14 August 2013 10:21 CEST | Original file | - |
| article xml file uploaded | 14 August 2013 10:21 CEST | Original file | https://www.mdpi.com/1422-0067/14/7/14504/xml |
| article pdf uploaded. | 11 July 2013 13:33 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/7/14504/pdf |
