| article html file updated | 6 February 2020 20:13 CET | Update | https://www.mdpi.com/1999-4907/6/7/2281 |
| article html file updated | 6 May 2019 16:41 CEST | Update | - |
| article html file updated | 26 March 2019 05:43 CET | Update | - |
| article html file updated | 21 August 2015 14:19 CEST | Update | - |
| article html file updated | 7 August 2015 14:47 CEST | Update | - |
| article xml file uploaded | 7 August 2015 14:47 CEST | Update | https://www.mdpi.com/1999-4907/6/7/2281/xml |
| article html file updated | 28 July 2015 12:27 CEST | Original file | - |
| article xml file uploaded | 28 July 2015 12:27 CEST | Original file | - |
| article supplementary file uploaded. | 30 June 2015 15:50 CEST | - | https://www.mdpi.com/1999-4907/6/7/2281#supplementary |
| article pdf uploaded. | 30 June 2015 15:50 CEST | Version of Record | https://www.mdpi.com/1999-4907/6/7/2281/pdf |
