| article html file updated | 7 February 2020 13:03 CET | Update | https://www.mdpi.com/2077-0472/6/3/36 |
| article html file updated | 21 September 2019 22:38 CEST | Update | - |
| article html file updated | 5 May 2019 07:36 CEST | Update | - |
| article html file updated | 27 March 2019 13:07 CET | Update | - |
| article html file updated | 29 September 2016 08:23 CEST | Update | - |
| article html file updated | 11 August 2016 11:51 CEST | Update | - |
| article html file updated | 9 August 2016 11:49 CEST | Original file | - |
| article xml uploaded. | 9 August 2016 11:48 CEST | Original file | https://www.mdpi.com/2077-0472/6/3/36/xml |
| article pdf uploaded. | 9 August 2016 11:48 CEST | Version of Record | https://www.mdpi.com/2077-0472/6/3/36/pdf |
