| article html file updated | 8 February 2020 04:11 CET | Update | https://www.mdpi.com/2073-4360/9/4/149 |
| article html file updated | 24 September 2019 11:14 CEST | Update | - |
| article html file updated | 4 May 2019 01:06 CEST | Update | - |
| article html file updated | 18 March 2019 05:37 CET | Update | - |
| article html file updated | 28 April 2017 10:40 CEST | Update | - |
| article html file updated | 22 April 2017 12:58 CEST | Original file | - |
| article xml uploaded. | 22 April 2017 12:57 CEST | Original file | https://www.mdpi.com/2073-4360/9/4/149/xml |
| article pdf uploaded. | 22 April 2017 12:57 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/4/149/pdf |
