| article html file updated | 7 February 2020 05:45 CET | Update | https://www.mdpi.com/2227-7080/4/1/10 |
| article html file updated | 5 May 2019 21:46 CEST | Update | N/A |
| article html file updated | 26 March 2019 23:12 CET | Original file | N/A |
| article pdf uploaded. | 11 March 2016 14:06 CET | Version of Record | https://www.mdpi.com/2227-7080/4/1/10/pdf |
| article xml uploaded. | 11 March 2016 14:06 CET | Original file | https://www.mdpi.com/2227-7080/4/1/10/xml |
