| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/2072-6643/9/4/357 |
| article html file updated | 24 September 2019 03:42 CEST | Update | - |
| article html file updated | 4 May 2019 03:43 CEST | Update | - |
| article html file updated | 28 April 2017 11:48 CEST | Update | - |
| article html file updated | 5 April 2017 11:03 CEST | Original file | - |
| article xml uploaded. | 5 April 2017 11:01 CEST | Update | https://www.mdpi.com/2072-6643/9/4/357/xml |
| article pdf uploaded. | 5 April 2017 11:01 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/4/357/pdf |
| article pdf uploaded. | 3 April 2017 12:11 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/357/pdf-vor |
