| article html file updated | 6 February 2020 05:39 CET | Update | https://www.mdpi.com/2076-328X/3/4/619 |
| article html file updated | 20 September 2019 03:23 CEST | Update | N/A |
| article html file updated | 7 May 2019 21:55 CEST | Update | N/A |
| article html file updated | 21 March 2019 07:55 CET | Update | N/A |
| article html file updated | 19 August 2015 10:05 CEST | Update | N/A |
| article html file updated | 26 August 2014 03:57 CEST | Original file | N/A |
| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/3/4/619/xml |
| article pdf uploaded. | 20 November 2013 09:50 CET | Version of Record | https://www.mdpi.com/2076-328X/3/4/619/pdf |
