| article html file updated | 6 February 2020 12:04 CET | Update | https://www.mdpi.com/1422-0067/15/9/15912 |
| article html file updated | 7 May 2019 08:36 CEST | Update | - |
| article html file updated | 22 March 2019 00:30 CET | Update | - |
| article html file updated | 20 August 2015 17:53 CEST | Update | - |
| article html file updated | 19 October 2014 16:00 CEST | Update | - |
| article xml file uploaded | 19 October 2014 16:00 CEST | Update | https://www.mdpi.com/1422-0067/15/9/15912/xml |
| article html file updated | 30 September 2014 08:08 CEST | Original file | - |
| article xml file uploaded | 30 September 2014 08:08 CEST | Original file | - |
| article pdf uploaded. | 9 September 2014 11:44 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/9/15912/pdf |
