| article html file updated | 7 February 2020 11:40 CET | Update | https://www.mdpi.com/2076-2615/6/7/42 |
| article html file updated | 5 May 2019 10:13 CEST | Update | - |
| article html file updated | 27 March 2019 10:12 CET | Update | - |
| article html file updated | 27 July 2016 09:20 CEST | Update | - |
| article html file updated | 14 July 2016 08:16 CEST | Original file | - |
| article xml uploaded. | 14 July 2016 08:15 CEST | Original file | https://www.mdpi.com/2076-2615/6/7/42/xml |
| article pdf uploaded. | 14 July 2016 08:15 CEST | Version of Record | https://www.mdpi.com/2076-2615/6/7/42/pdf |
