| article html file updated | 8 February 2020 09:08 CET | Update | https://www.mdpi.com/2227-7102/7/3/66 |
| article html file updated | 25 September 2019 12:57 CEST | Update | - |
| article html file updated | 3 May 2019 15:51 CEST | Update | - |
| article html file updated | 27 October 2017 09:59 CEST | Update | - |
| article html file updated | 23 June 2017 15:50 CEST | Original file | - |
| article xml uploaded. | 23 June 2017 15:49 CEST | Original file | https://www.mdpi.com/2227-7102/7/3/66/xml |
| article pdf uploaded. | 23 June 2017 15:49 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/3/66/pdf |
