| article html file updated | 8 February 2020 07:19 CET | Update | https://www.mdpi.com/2073-4344/7/6/176 |
| article html file updated | 25 September 2019 03:24 CEST | Update | - |
| article html file updated | 3 May 2019 19:16 CEST | Update | - |
| article html file updated | 27 June 2017 09:59 CEST | Update | - |
| article html file updated | 5 June 2017 05:49 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 05:48 CEST | Original file | https://www.mdpi.com/2073-4344/7/6/176/xml |
| article pdf uploaded. | 5 June 2017 05:48 CEST | Updated version of record | https://www.mdpi.com/2073-4344/7/6/176/pdf |
| article pdf uploaded. | 2 June 2017 12:54 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/6/176/pdf-vor |
