| article html file updated | 6 February 2020 14:26 CET | Update | https://www.mdpi.com/1996-1073/7/12/8355 |
| article html file updated | 7 May 2019 04:00 CEST | Update | N/A |
| article html file updated | 25 March 2019 19:13 CET | Update | N/A |
| article html file updated | 21 August 2015 04:06 CEST | Update | N/A |
| article html file updated | 18 December 2014 11:38 CET | Original file | N/A |
| article xml file uploaded | 18 December 2014 11:38 CET | Original file | https://www.mdpi.com/1996-1073/7/12/8355/xml |
| article pdf uploaded. | 15 December 2014 09:07 CET | Updated version of record | https://www.mdpi.com/1996-1073/7/12/8355/pdf |
| article pdf uploaded. | 12 December 2014 14:16 CET | Version of Record | https://www.mdpi.com/1996-1073/7/12/8355/pdf-vor |
