| article html file updated | 8 February 2020 07:57 CET | Update | https://www.mdpi.com/2073-4352/7/6/170 |
| article html file updated | 25 September 2019 06:39 CEST | Update | - |
| article html file updated | 3 May 2019 18:05 CEST | Update | - |
| article html file updated | 30 June 2017 11:26 CEST | Update | - |
| article html file updated | 12 June 2017 09:55 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 09:53 CEST | Original file | https://www.mdpi.com/2073-4352/7/6/170/xml |
| article pdf uploaded. | 12 June 2017 09:53 CEST | Updated version of record | https://www.mdpi.com/2073-4352/7/6/170/pdf |
| article pdf uploaded. | 10 June 2017 09:55 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/6/170/pdf-vor |
