| article html file updated | 6 February 2020 04:04 CET | Update | https://www.mdpi.com/1422-0067/14/9/17729 |
| article html file updated | 8 May 2019 01:06 CEST | Update | - |
| article html file updated | 21 March 2019 03:49 CET | Update | - |
| article html file updated | 17 June 2015 12:46 CEST | Update | - |
| article html file updated | 31 October 2013 10:03 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:03 CET | Update | https://www.mdpi.com/1422-0067/14/9/17729/xml |
| article html file updated | 14 October 2013 12:28 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:27 CEST | Original file | - |
| article pdf uploaded. | 29 August 2013 11:23 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/17729/pdf |
