| article html file updated | 7 February 2020 07:31 CET | Update | https://www.mdpi.com/2076-3417/6/4/110 |
| article html file updated | 5 May 2019 18:08 CEST | Update | - |
| article html file updated | 27 March 2019 02:22 CET | Update | - |
| article html file updated | 27 April 2016 11:30 CEST | Update | - |
| article html file updated | 20 April 2016 09:19 CEST | Original file | - |
| article xml uploaded. | 20 April 2016 09:17 CEST | Update | https://www.mdpi.com/2076-3417/6/4/110/xml |
| article pdf uploaded. | 20 April 2016 09:17 CEST | Version of Record | https://www.mdpi.com/2076-3417/6/4/110/pdf |
