| article html file updated | 6 February 2020 06:02 CET | Update | https://www.mdpi.com/2072-6651/5/12/2420 |
| article html file updated | 7 May 2019 21:09 CEST | Update | N/A |
| article html file updated | 21 March 2019 09:00 CET | Update | N/A |
| article html file updated | 19 August 2015 12:50 CEST | Update | N/A |
| article html file updated | 7 January 2014 12:33 CET | Original file | N/A |
| article xml file uploaded | 7 January 2014 12:33 CET | Original file | https://www.mdpi.com/2072-6651/5/12/2420/xml |
| article pdf uploaded. | 6 December 2013 17:31 CET | Version of Record | https://www.mdpi.com/2072-6651/5/12/2420/pdf |
