| article html file updated | 7 February 2020 15:43 CET | Update | https://www.mdpi.com/2227-7080/4/4/32 |
| article html file updated | 5 May 2019 02:48 CEST | Update | N/A |
| article html file updated | 28 September 2016 12:49 CEST | Original file | N/A |
| article xml uploaded. | 28 September 2016 12:48 CEST | Update | https://www.mdpi.com/2227-7080/4/4/32/xml |
| article xml uploaded. | 28 September 2016 12:48 CEST | Original file | N/A |
| article pdf uploaded. | 28 September 2016 12:48 CEST | Version of Record | https://www.mdpi.com/2227-7080/4/4/32/pdf |
