| article html file updated | 8 February 2020 03:51 CET | Update | https://www.mdpi.com/2073-4344/7/4/120 |
| article html file updated | 24 September 2019 09:20 CEST | Update | - |
| article html file updated | 4 May 2019 01:43 CEST | Update | - |
| article html file updated | 28 April 2017 05:36 CEST | Update | - |
| article html file updated | 19 April 2017 10:50 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 10:49 CEST | Original file | https://www.mdpi.com/2073-4344/7/4/120/xml |
| article pdf uploaded. | 19 April 2017 10:49 CEST | Updated version of record | https://www.mdpi.com/2073-4344/7/4/120/pdf |
| article pdf uploaded. | 18 April 2017 16:08 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/4/120/pdf-vor |
