| article html file updated | 6 February 2020 18:31 CET | Update | https://www.mdpi.com/1999-4907/6/5/1628 |
| article html file updated | 6 May 2019 20:16 CEST | Update | N/A |
| article html file updated | 26 March 2019 02:22 CET | Update | N/A |
| article html file updated | 21 August 2015 11:56 CEST | Update | N/A |
| article html file updated | 9 June 2015 12:08 CEST | Update | N/A |
| article xml file uploaded | 9 June 2015 12:08 CEST | Update | https://www.mdpi.com/1999-4907/6/5/1628/xml |
| article html file updated | 3 June 2015 11:45 CEST | Original file | N/A |
| article xml file uploaded | 3 June 2015 11:45 CEST | Original file | N/A |
| article pdf uploaded. | 12 May 2015 12:03 CEST | Version of Record | https://www.mdpi.com/1999-4907/6/5/1628/pdf |