| article html file updated | 7 February 2020 02:47 CET | Update | https://www.mdpi.com/2073-4433/7/1/3 |
| article html file updated | 6 May 2019 03:47 CEST | Update | - |
| article html file updated | 26 March 2019 17:22 CET | Original file | - |
| article pdf uploaded. | 4 January 2016 16:19 CET | Updated version of record | https://www.mdpi.com/2073-4433/7/1/3/pdf |
| article pdf uploaded. | 4 January 2016 16:15 CET | Updated version of record | - |
| article pdf uploaded. | 28 December 2015 13:15 CET | Version of Record | - |
| article xml uploaded. | 28 December 2015 13:15 CET | Original file | https://www.mdpi.com/2073-4433/7/1/3/xml |
