| article html file updated | 6 February 2020 19:17 CET | Update | https://www.mdpi.com/1996-1073/8/6/5159 |
| article html file updated | 6 May 2019 18:36 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:59 CET | Update | N/A |
| article html file updated | 21 August 2015 13:03 CEST | Update | N/A |
| article html file updated | 7 July 2015 07:41 CEST | Original file | N/A |
| article xml file uploaded | 7 July 2015 07:41 CEST | Original file | https://www.mdpi.com/1996-1073/8/6/5159/xml |
| article pdf uploaded. | 2 June 2015 14:17 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/6/5159/pdf |
