| article html file updated | 7 February 2020 13:45 CET | Update | https://www.mdpi.com/2075-163X/6/3/87 |
| article html file updated | 5 May 2019 06:20 CEST | Update | - |
| article html file updated | 27 March 2019 14:30 CET | Update | - |
| article html file updated | 28 September 2016 07:44 CEST | Update | - |
| article html file updated | 23 August 2016 14:01 CEST | Original file | - |
| article xml uploaded. | 23 August 2016 13:59 CEST | Original file | https://www.mdpi.com/2075-163X/6/3/87/xml |
| article pdf uploaded. | 23 August 2016 13:59 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/3/87/pdf |
