| article html file updated | 6 February 2020 02:38 CET | Update | https://www.mdpi.com/1422-0067/14/6/12550 |
| article html file updated | 8 May 2019 04:02 CEST | Update | - |
| article html file updated | 20 March 2019 23:49 CET | Update | - |
| article html file updated | 17 June 2015 10:17 CEST | Update | - |
| article html file updated | 19 July 2013 10:52 CEST | Original file | - |
| article xml file uploaded | 19 July 2013 10:51 CEST | Original file | https://www.mdpi.com/1422-0067/14/6/12550/xml |
| article pdf uploaded. | 14 June 2013 15:38 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/6/12550/pdf |
