| article html file updated | 6 February 2020 06:33 CET | Update | https://www.mdpi.com/2072-6651/6/1/211 |
| article html file updated | 7 May 2019 20:10 CEST | Update | - |
| article html file updated | 21 March 2019 10:31 CET | Update | - |
| article html file updated | 19 August 2015 16:28 CEST | Update | - |
| article html file updated | 17 February 2014 12:40 CET | Original file | - |
| article xml file uploaded | 17 February 2014 12:40 CET | Original file | https://www.mdpi.com/2072-6651/6/1/211/xml |
| article pdf uploaded. | 3 January 2014 13:05 CET | Version of Record | https://www.mdpi.com/2072-6651/6/1/211/pdf |
