| article html file updated | 7 February 2020 01:41 CET | Update | https://www.mdpi.com/2073-4433/6/12/1835 |
| article html file updated | 6 May 2019 06:05 CEST | Update | - |
| article html file updated | 26 March 2019 15:36 CET | Original file | - |
| article pdf uploaded. | 22 December 2015 08:58 CET | Updated version of record | https://www.mdpi.com/2073-4433/6/12/1835/pdf |
| article pdf uploaded. | 3 December 2015 12:41 CET | Version of Record | https://www.mdpi.com/2073-4433/6/12/1835/pdf-vor |
| article xml uploaded. | 3 December 2015 12:41 CET | Original file | https://www.mdpi.com/2073-4433/6/12/1835/xml |
