| article html file updated | 7 February 2020 19:06 CET | Update | https://www.mdpi.com/2073-4433/7/12/157 |
| article html file updated | 22 September 2019 08:52 CEST | Update | - |
| article html file updated | 4 May 2019 20:19 CEST | Update | - |
| article html file updated | 26 December 2016 12:13 CET | Update | - |
| article html file updated | 5 December 2016 11:49 CET | Original file | - |
| article xml uploaded. | 5 December 2016 11:47 CET | Original file | https://www.mdpi.com/2073-4433/7/12/157/xml |
| article pdf uploaded. | 5 December 2016 11:47 CET | Version of Record | https://www.mdpi.com/2073-4433/7/12/157/pdf |
