| article html file updated | 7 February 2020 14:40 CET | Update | https://www.mdpi.com/2075-4442/4/3/33 |
| article html file updated | 5 May 2019 04:41 CEST | Update | - |
| article html file updated | 8 September 2016 12:50 CEST | Original file | - |
| article xml uploaded. | 8 September 2016 12:49 CEST | Update | https://www.mdpi.com/2075-4442/4/3/33/xml |
| article xml uploaded. | 8 September 2016 12:49 CEST | Original file | - |
| article pdf uploaded. | 8 September 2016 12:49 CEST | Version of Record | https://www.mdpi.com/2075-4442/4/3/33/pdf |
