| article html file updated | 8 February 2020 13:32 CET | Update | https://www.mdpi.com/2227-9067/4/8/74 |
| article html file updated | 3 May 2019 06:58 CEST | Update | N/A |
| article html file updated | 27 March 2019 20:49 CET | Update | N/A |
| article html file updated | 1 September 2017 08:25 CEST | Update | N/A |
| article html file updated | 14 August 2017 13:59 CEST | Original file | N/A |
| article xml uploaded. | 14 August 2017 13:58 CEST | Original file | https://www.mdpi.com/2227-9067/4/8/74/xml |
| article pdf uploaded. | 14 August 2017 13:58 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/8/74/pdf |
