| article html file updated | 7 February 2020 23:11 CET | Update | https://www.mdpi.com/2076-3905/6/1/5 |
| article html file updated | 23 September 2019 06:48 CEST | Update | - |
| article html file updated | 4 May 2019 11:40 CEST | Update | - |
| article html file updated | 31 March 2017 05:29 CEST | Update | - |
| article html file updated | 17 February 2017 14:05 CET | Original file | - |
| article xml uploaded. | 17 February 2017 14:03 CET | Original file | https://www.mdpi.com/2076-3905/6/1/5/xml |
| article pdf uploaded. | 17 February 2017 14:03 CET | Updated version of record | https://www.mdpi.com/2076-3905/6/1/5/pdf |
| article pdf uploaded. | 10 February 2017 19:57 CET | Version of Record | https://www.mdpi.com/2076-3905/6/1/5/pdf-vor |
