| article html file updated | 7 February 2020 00:00 CET | Update | https://www.mdpi.com/2078-2489/6/4/679 |
| article html file updated | 6 May 2019 08:53 CEST | Update | - |
| article html file updated | 26 March 2019 12:58 CET | Original file | - |
| article pdf uploaded. | 23 October 2015 12:14 CEST | Updated version of record | https://www.mdpi.com/2078-2489/6/4/679/pdf |
| article pdf uploaded. | 20 October 2015 16:42 CEST | Version of Record | https://www.mdpi.com/2078-2489/6/4/679/pdf-vor |
