| article html file updated | 7 February 2020 09:48 CET | Update | https://www.mdpi.com/2220-9964/5/6/86 |
| article html file updated | 5 May 2019 13:37 CEST | Update | - |
| article html file updated | 27 March 2019 06:49 CET | Update | - |
| article html file updated | 29 June 2016 05:45 CEST | Update | - |
| article html file updated | 6 June 2016 11:56 CEST | Original file | - |
| article xml uploaded. | 6 June 2016 11:54 CEST | Original file | https://www.mdpi.com/2220-9964/5/6/86/xml |
| article pdf uploaded. | 6 June 2016 11:54 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/6/86/pdf |
