| article html file updated | 8 February 2020 06:41 CET | Update | https://www.mdpi.com/2073-4433/8/6/97 |
| article html file updated | 25 September 2019 00:13 CEST | Update | - |
| article html file updated | 3 May 2019 20:27 CEST | Update | - |
| article html file updated | 27 June 2017 09:51 CEST | Update | - |
| article html file updated | 25 May 2017 15:37 CEST | Original file | - |
| article xml uploaded. | 25 May 2017 15:35 CEST | Original file | https://www.mdpi.com/2073-4433/8/6/97/xml |
| article pdf uploaded. | 25 May 2017 15:35 CEST | Version of Record | https://www.mdpi.com/2073-4433/8/6/97/pdf |
