| article html file updated | 6 February 2020 03:33 CET | Update | https://www.mdpi.com/1422-0067/14/8/15977 |
| article html file updated | 8 May 2019 02:13 CEST | Update | - |
| article html file updated | 21 March 2019 02:18 CET | Update | - |
| article html file updated | 17 June 2015 11:56 CEST | Update | - |
| article html file updated | 31 October 2013 09:56 CET | Update | - |
| article xml file uploaded | 31 October 2013 09:55 CET | Update | https://www.mdpi.com/1422-0067/14/8/15977/xml |
| article html file updated | 3 September 2013 12:39 CEST | Original file | - |
| article xml file uploaded | 3 September 2013 12:38 CEST | Original file | - |
| article pdf uploaded. | 31 July 2013 16:54 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/8/15977/pdf |
