| article html file updated | 6 February 2020 00:36 CET | Update | https://www.mdpi.com/1422-0067/14/2/4121 |
| article html file updated | 19 September 2019 18:01 CEST | Update | - |
| article html file updated | 8 May 2019 08:19 CEST | Update | - |
| article html file updated | 20 March 2019 18:45 CET | Update | - |
| article html file updated | 11 April 2017 10:16 CEST | Update | - |
| article html file updated | 17 June 2015 06:39 CEST | Update | - |
| article html file updated | 3 December 2013 08:18 CET | Update | - |
| article xml file uploaded | 3 December 2013 08:18 CET | Update | https://www.mdpi.com/1422-0067/14/2/4121/xml |
| article html file updated | 5 March 2013 19:47 CET | Original file | - |
| article xml file uploaded | 5 March 2013 19:46 CET | Original file | - |
| article pdf uploaded. | 19 February 2013 09:51 CET | Version of Record | https://www.mdpi.com/1422-0067/14/2/4121/pdf |
