| article html file updated | 8 February 2020 11:03 CET | Update | https://www.mdpi.com/2227-7080/5/3/44 |
| article html file updated | 25 September 2019 23:00 CEST | Update | N/A |
| article html file updated | 3 May 2019 12:17 CEST | Update | N/A |
| article html file updated | 30 September 2017 10:10 CEST | Update | N/A |
| article html file updated | 14 July 2017 22:33 CEST | Original file | N/A |
| article xml uploaded. | 14 July 2017 14:54 CEST | Original file | https://www.mdpi.com/2227-7080/5/3/44/xml |
| article pdf uploaded. | 14 July 2017 14:54 CEST | Version of Record | https://www.mdpi.com/2227-7080/5/3/44/pdf |
