| article html file updated | 8 February 2020 16:31 CET | Update | https://www.mdpi.com/2223-7747/6/3/41 |
| article html file updated | 27 September 2019 05:20 CEST | Update | N/A |
| article html file updated | 3 May 2019 01:22 CEST | Update | N/A |
| article html file updated | 30 September 2017 14:26 CEST | Update | N/A |
| article html file updated | 18 September 2017 15:04 CEST | Original file | N/A |
| article xml uploaded. | 18 September 2017 15:03 CEST | Original file | https://www.mdpi.com/2223-7747/6/3/41/xml |
| article pdf uploaded. | 18 September 2017 15:03 CEST | Version of Record | https://www.mdpi.com/2223-7747/6/3/41/pdf |
