| article html file updated | 8 February 2020 00:33 CET | Update | https://www.mdpi.com/2073-4441/9/3/176 |
| article html file updated | 23 September 2019 14:29 CEST | Update | - |
| article html file updated | 4 May 2019 08:47 CEST | Update | - |
| article html file updated | 28 March 2017 03:38 CEST | Update | - |
| article html file updated | 1 March 2017 13:45 CET | Original file | - |
| article xml uploaded. | 1 March 2017 13:44 CET | Original file | https://www.mdpi.com/2073-4441/9/3/176/xml |
| article pdf uploaded. | 1 March 2017 13:44 CET | Version of Record | https://www.mdpi.com/2073-4441/9/3/176/pdf |
