| article html file updated | 6 February 2020 21:04 CET | Update | https://www.mdpi.com/1999-4907/6/8/2545 |
| article html file updated | 6 May 2019 14:56 CEST | Update | - |
| article html file updated | 26 March 2019 07:25 CET | Update | - |
| article html file updated | 1 September 2015 08:42 CEST | Update | - |
| article xml file uploaded | 1 September 2015 08:42 CEST | Original file | https://www.mdpi.com/1999-4907/6/8/2545/xml |
| article html file updated | 21 August 2015 15:14 CEST | Original file | - |
| article pdf uploaded. | 27 July 2015 11:11 CEST | Version of Record | https://www.mdpi.com/1999-4907/6/8/2545/pdf |
