| article html file updated | 7 February 2020 14:42 CET | Update | https://www.mdpi.com/2227-7080/4/3/30 |
| article html file updated | 5 May 2019 04:36 CEST | Update | N/A |
| article html file updated | 9 September 2016 08:50 CEST | Original file | N/A |
| article xml uploaded. | 9 September 2016 08:48 CEST | Update | https://www.mdpi.com/2227-7080/4/3/30/xml |
| article xml uploaded. | 9 September 2016 08:48 CEST | Update | N/A |
| article xml uploaded. | 9 September 2016 08:48 CEST | Original file | N/A |
| article pdf uploaded. | 9 September 2016 08:48 CEST | Version of Record | https://www.mdpi.com/2227-7080/4/3/30/pdf |
