| article html file updated | 7 February 2020 23:50 CET | Update | https://www.mdpi.com/2073-4433/8/2/42 |
| article html file updated | 23 September 2019 10:24 CEST | Update | - |
| article html file updated | 4 May 2019 10:23 CEST | Update | - |
| article html file updated | 28 February 2017 11:06 CET | Update | - |
| article html file updated | 20 February 2017 14:09 CET | Original file | - |
| article xml uploaded. | 20 February 2017 14:08 CET | Original file | https://www.mdpi.com/2073-4433/8/2/42/xml |
| article pdf uploaded. | 20 February 2017 14:08 CET | Version of Record | https://www.mdpi.com/2073-4433/8/2/42/pdf |
