| article html file updated | 6 February 2020 15:39 CET | Update | https://www.mdpi.com/1999-4907/6/2/395 |
| article html file updated | 7 May 2019 01:33 CEST | Update | - |
| article html file updated | 25 March 2019 21:16 CET | Update | - |
| article html file updated | 21 August 2015 06:56 CEST | Update | - |
| article html file updated | 15 February 2015 10:06 CET | Original file | - |
| article xml file uploaded | 15 February 2015 10:06 CET | Original file | https://www.mdpi.com/1999-4907/6/2/395/xml |
| article pdf uploaded. | 2 February 2015 14:54 CET | Version of Record | https://www.mdpi.com/1999-4907/6/2/395/pdf |
