| article html file updated | 6 February 2020 23:07 CET | Update | https://www.mdpi.com/1999-5903/7/3/342 |
| article html file updated | 6 May 2019 10:41 CEST | Update | - |
| article html file updated | 26 March 2019 11:21 CET | Update | - |
| article html file updated | 28 October 2015 11:04 CET | Original file | - |
| article xml file uploaded | 28 October 2015 11:04 CET | Original file | https://www.mdpi.com/1999-5903/7/3/342/xml |
| article pdf uploaded. | 23 September 2015 11:11 CEST | Version of Record | https://www.mdpi.com/1999-5903/7/3/342/pdf |
