| article html file updated | 8 February 2020 03:06 CET | Update | https://www.mdpi.com/2073-4441/9/4/262 |
| article html file updated | 24 September 2019 05:05 CEST | Update | - |
| article html file updated | 4 May 2019 03:10 CEST | Update | - |
| article html file updated | 28 April 2017 11:24 CEST | Update | - |
| article html file updated | 10 April 2017 09:36 CEST | Original file | - |
| article xml uploaded. | 10 April 2017 09:35 CEST | Update | https://www.mdpi.com/2073-4441/9/4/262/xml |
| article pdf uploaded. | 10 April 2017 09:35 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/4/262/pdf |
| article pdf uploaded. | 7 April 2017 11:43 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/262/pdf-vor |
