| article html file updated | 7 February 2020 01:57 CET | Update | https://www.mdpi.com/2075-1729/5/4/1700 |
| article html file updated | 6 May 2019 05:34 CEST | Update | - |
| article html file updated | 26 March 2019 16:01 CET | Original file | - |
| article pdf uploaded. | 9 December 2015 07:30 CET | Updated version of record | https://www.mdpi.com/2075-1729/5/4/1700/pdf |
| article pdf uploaded. | 8 December 2015 13:17 CET | Version of Record | https://www.mdpi.com/2075-1729/5/4/1700/pdf-vor |
| article xml uploaded. | 8 December 2015 13:17 CET | Original file | https://www.mdpi.com/2075-1729/5/4/1700/xml |
