| article html file updated | 6 February 2020 08:22 CET | Update | https://www.mdpi.com/2072-666X/5/2/139 |
| article html file updated | 7 May 2019 16:24 CEST | Update | - |
| article html file updated | 21 March 2019 14:57 CET | Update | - |
| article html file updated | 20 August 2015 02:09 CEST | Update | - |
| article html file updated | 27 June 2014 05:59 CEST | Original file | - |
| article xml file uploaded | 27 June 2014 05:59 CEST | Original file | https://www.mdpi.com/2072-666X/5/2/139/xml |
| article pdf uploaded. | 25 June 2014 09:49 CEST | Updated version of record | https://www.mdpi.com/2072-666X/5/2/139/pdf |
| article pdf uploaded. | 4 April 2014 16:30 CEST | Updated version of record | https://www.mdpi.com/2072-666X/5/2/139/pdf-vor |
| article pdf uploaded. | 3 April 2014 11:20 CEST | Version of Record | https://www.mdpi.com/2072-666X/5/2/139/pdf-vor |
