| article html file updated | 8 February 2020 03:46 CET | Update | https://www.mdpi.com/2073-4441/9/4/278 |
| article html file updated | 24 September 2019 08:51 CEST | Update | - |
| article html file updated | 4 May 2019 01:52 CEST | Update | - |
| article html file updated | 28 April 2017 11:28 CEST | Update | - |
| article html file updated | 20 April 2017 08:07 CEST | Update | - |
| article xml uploaded. | 20 April 2017 08:06 CEST | Update | https://www.mdpi.com/2073-4441/9/4/278/xml |
| article pdf uploaded. | 19 April 2017 12:00 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/4/278/pdf |
| article html file updated | 17 April 2017 17:04 CEST | Original file | - |
| article pdf uploaded. | 17 April 2017 17:02 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/278/pdf-vor |
