| article html file updated | 6 February 2020 02:21 CET | Update | https://www.mdpi.com/2072-6643/5/6/1856 |
| article html file updated | 19 September 2019 21:14 CEST | Update | N/A |
| article html file updated | 8 May 2019 04:39 CEST | Update | N/A |
| article html file updated | 20 March 2019 23:05 CET | Update | N/A |
| article html file updated | 17 June 2015 09:43 CEST | Update | N/A |
| article html file updated | 6 August 2013 15:57 CEST | Original file | N/A |
| article xml file uploaded | 6 August 2013 15:57 CEST | Original file | https://www.mdpi.com/2072-6643/5/6/1856/xml |
| article pdf uploaded. | 28 May 2013 12:04 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/6/1856/pdf |
