| article html file updated | 7 February 2020 05:08 CET | Update | https://www.mdpi.com/2076-0825/5/1/6 |
| article html file updated | 5 May 2019 23:03 CEST | Update | - |
| article html file updated | 26 March 2019 21:56 CET | Update | - |
| article html file updated | 16 June 2016 05:00 CEST | Original file | - |
| article pdf uploaded. | 4 March 2016 05:32 CET | Updated version of record | https://www.mdpi.com/2076-0825/5/1/6/pdf |
| article xml uploaded. | 4 March 2016 05:32 CET | Update | https://www.mdpi.com/2076-0825/5/1/6/xml |
| article pdf uploaded. | 26 February 2016 14:40 CET | Version of Record | https://www.mdpi.com/2076-0825/5/1/6/pdf-vor |
| article xml uploaded. | 26 February 2016 14:40 CET | Original file | - |
