| article html file updated | 6 February 2020 05:51 CET | Update | https://www.mdpi.com/1422-0067/14/12/23441 |
| article html file updated | 7 May 2019 21:32 CEST | Update | N/A |
| article html file updated | 21 March 2019 08:27 CET | Update | N/A |
| article html file updated | 19 August 2015 11:33 CEST | Update | N/A |
| article html file updated | 31 December 2013 09:18 CET | Original file | N/A |
| article xml file uploaded | 31 December 2013 09:18 CET | Original file | https://www.mdpi.com/1422-0067/14/12/23441/xml |
| article pdf uploaded. | 28 November 2013 11:39 CET | Version of Record | https://www.mdpi.com/1422-0067/14/12/23441/pdf |
