| article html file updated | 6 February 2020 06:37 CET | Update | https://www.mdpi.com/1422-0067/15/1/684 |
| article html file updated | 7 May 2019 20:03 CEST | Update | - |
| article html file updated | 21 March 2019 10:42 CET | Update | - |
| article html file updated | 19 August 2015 16:45 CEST | Update | - |
| article html file updated | 3 February 2014 10:44 CET | Original file | - |
| article xml file uploaded | 3 February 2014 10:43 CET | Original file | https://www.mdpi.com/1422-0067/15/1/684/xml |
| article pdf uploaded. | 9 January 2014 11:43 CET | Updated version of record | https://www.mdpi.com/1422-0067/15/1/684/pdf |
| article pdf uploaded. | 7 January 2014 13:28 CET | Version of Record | https://www.mdpi.com/1422-0067/15/1/684/pdf-vor |
