| article html file updated | 8 February 2020 00:49 CET | Update | https://www.mdpi.com/2072-6643/9/3/227 |
| article html file updated | 23 September 2019 16:11 CEST | Update | - |
| article html file updated | 4 May 2019 08:08 CEST | Update | - |
| article html file updated | 28 March 2017 09:44 CEST | Update | - |
| article html file updated | 5 March 2017 12:11 CET | Original file | - |
| article xml uploaded. | 5 March 2017 12:10 CET | Original file | https://www.mdpi.com/2072-6643/9/3/227/xml |
| article pdf uploaded. | 5 March 2017 12:10 CET | Version of Record | https://www.mdpi.com/2072-6643/9/3/227/pdf |
