| article html file updated | 6 February 2020 02:33 CET | Update | https://www.mdpi.com/2076-328X/3/2/273 |
| article html file updated | 8 May 2019 04:14 CEST | Update | - |
| article html file updated | 20 March 2019 23:36 CET | Update | - |
| article html file updated | 17 June 2015 10:05 CEST | Update | - |
| article html file updated | 26 August 2014 03:57 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/3/2/273/xml |
| article pdf uploaded. | 7 June 2013 10:36 CEST | Version of Record | https://www.mdpi.com/2076-328X/3/2/273/pdf |
