| article html file updated | 7 February 2020 14:28 CET | Update | https://www.mdpi.com/2075-4701/6/9/213 |
| article html file updated | 5 May 2019 05:03 CEST | Update | - |
| article html file updated | 27 September 2016 10:06 CEST | Update | - |
| article html file updated | 6 September 2016 04:25 CEST | Original file | - |
| article xml uploaded. | 6 September 2016 04:23 CEST | Update | https://www.mdpi.com/2075-4701/6/9/213/xml |
| article xml uploaded. | 6 September 2016 04:23 CEST | Original file | - |
| article pdf uploaded. | 6 September 2016 04:23 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/9/213/pdf |
