| article html file updated | 8 February 2020 07:11 CET | Update | https://www.mdpi.com/2073-4344/7/6/170 |
| article html file updated | 25 September 2019 02:49 CEST | Update | - |
| article html file updated | 3 May 2019 19:31 CEST | Update | - |
| article html file updated | 27 June 2017 09:58 CEST | Original file | - |
| article pdf uploaded. | 2 June 2017 09:07 CEST | Updated version of record | https://www.mdpi.com/2073-4344/7/6/170/pdf |
| article xml uploaded. | 1 June 2017 13:23 CEST | Original file | https://www.mdpi.com/2073-4344/7/6/170/xml |
| article pdf uploaded. | 1 June 2017 13:23 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/6/170/pdf-vor |
