| article html file updated | 7 February 2020 05:45 CET | Update | https://www.mdpi.com/2073-4433/7/3/40 |
| article html file updated | 5 May 2019 21:47 CEST | Update | - |
| article html file updated | 26 March 2019 23:11 CET | Update | - |
| article html file updated | 28 March 2016 11:22 CEST | Original file | - |
| article pdf uploaded. | 11 March 2016 09:11 CET | Version of Record | https://www.mdpi.com/2073-4433/7/3/40/pdf |
| article xml uploaded. | 11 March 2016 09:11 CET | Original file | https://www.mdpi.com/2073-4433/7/3/40/xml |
