| article html file updated | 7 February 2020 21:57 CET | Update | https://www.mdpi.com/2073-4441/9/1/66 |
| article html file updated | 23 September 2019 00:03 CEST | Update | - |
| article html file updated | 4 May 2019 14:08 CEST | Update | - |
| article html file updated | 7 February 2017 04:36 CET | Update | - |
| article html file updated | 21 January 2017 11:29 CET | Original file | - |
| article xml uploaded. | 21 January 2017 11:28 CET | Update | https://www.mdpi.com/2073-4441/9/1/66/xml |
| article xml uploaded. | 21 January 2017 11:28 CET | Original file | - |
| article pdf uploaded. | 21 January 2017 11:28 CET | Version of Record | https://www.mdpi.com/2073-4441/9/1/66/pdf |
