| article html file updated | 6 February 2020 01:54 CET | Update | https://www.mdpi.com/2076-328X/3/2/244 |
| article html file updated | 8 May 2019 05:32 CEST | Update | - |
| article html file updated | 20 March 2019 22:04 CET | Update | - |
| article html file updated | 17 June 2015 09:01 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/3/2/244/xml |
| article pdf uploaded. | 6 May 2013 18:20 CEST | Updated version of record | https://www.mdpi.com/2076-328X/3/2/244/pdf |
| article pdf uploaded. | 3 May 2013 14:58 CEST | Version of Record | https://www.mdpi.com/2076-328X/3/2/244/pdf-vor |
