| article html file updated | 7 February 2020 15:13 CET | Update | https://www.mdpi.com/2227-9717/4/3/33 |
| article html file updated | 5 May 2019 03:40 CEST | Update | - |
| article html file updated | 28 September 2016 23:02 CEST | Update | - |
| article html file updated | 20 September 2016 13:15 CEST | Original file | - |
| article xml uploaded. | 20 September 2016 13:14 CEST | Update | https://www.mdpi.com/2227-9717/4/3/33/xml |
| article xml uploaded. | 20 September 2016 13:14 CEST | Original file | - |
| article pdf uploaded. | 20 September 2016 13:14 CEST | Version of Record | https://www.mdpi.com/2227-9717/4/3/33/pdf |
