| article html file updated | 8 February 2020 00:06 CET | Update | https://www.mdpi.com/2071-1050/9/3/331 |
| article html file updated | 23 September 2019 11:56 CEST | Update | N/A |
| article html file updated | 4 May 2019 09:48 CEST | Update | N/A |
| article html file updated | 28 March 2017 06:00 CEST | Update | N/A |
| article html file updated | 23 February 2017 12:00 CET | Original file | N/A |
| article xml uploaded. | 23 February 2017 11:59 CET | Original file | https://www.mdpi.com/2071-1050/9/3/331/xml |
| article pdf uploaded. | 23 February 2017 11:59 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/331/pdf |
