| article html file updated | 8 February 2020 01:58 CET | Update | https://www.mdpi.com/2071-1050/9/3/473 |
| article html file updated | 23 September 2019 22:48 CEST | Update | - |
| article html file updated | 4 May 2019 05:36 CEST | Update | - |
| article html file updated | 28 March 2017 06:18 CEST | Update | - |
| article html file updated | 27 March 2017 05:23 CEST | Update | - |
| article html file updated | 24 March 2017 07:03 CET | Update | - |
| article html file updated | 22 March 2017 10:25 CET | Original file | - |
| article xml uploaded. | 22 March 2017 10:24 CET | Original file | https://www.mdpi.com/2071-1050/9/3/473/xml |
| article pdf uploaded. | 22 March 2017 10:24 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/473/pdf |
