| article html file updated | 7 February 2020 21:11 CET | Update | https://www.mdpi.com/2076-0825/6/1/3 |
| article html file updated | 4 May 2019 15:56 CEST | Update | - |
| article html file updated | 29 March 2017 10:32 CEST | Update | - |
| article pdf uploaded. | 12 January 2017 09:05 CET | Updated version of record | https://www.mdpi.com/2076-0825/6/1/3/pdf |
| article html file updated | 11 January 2017 12:19 CET | Original file | - |
| article xml uploaded. | 11 January 2017 12:18 CET | Original file | https://www.mdpi.com/2076-0825/6/1/3/xml |
| article pdf uploaded. | 11 January 2017 12:18 CET | Version of Record | https://www.mdpi.com/2076-0825/6/1/3/pdf-vor |
