| article html file updated | 6 February 2020 04:11 CET | Update | https://www.mdpi.com/1422-0067/14/9/18093 |
| article html file updated | 8 May 2019 00:53 CEST | Update | - |
| article html file updated | 21 March 2019 04:05 CET | Update | - |
| article html file updated | 17 June 2015 12:53 CEST | Update | - |
| article html file updated | 31 October 2013 10:09 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:09 CET | Update | https://www.mdpi.com/1422-0067/14/9/18093/xml |
| article html file updated | 14 October 2013 12:40 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:40 CEST | Original file | - |
| article pdf uploaded. | 6 September 2013 16:20 CEST | Updated version of record | https://www.mdpi.com/1422-0067/14/9/18093/pdf |
| article pdf uploaded. | 4 September 2013 13:42 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18093/pdf-vor |
