| article html file updated | 8 February 2020 01:16 CET | Update | https://www.mdpi.com/2072-6643/9/3/268 |
| article html file updated | 23 September 2019 18:45 CEST | Update | - |
| article html file updated | 4 May 2019 07:08 CEST | Update | - |
| article html file updated | 28 March 2017 09:40 CEST | Update | - |
| article html file updated | 11 March 2017 11:04 CET | Original file | - |
| article xml uploaded. | 11 March 2017 11:02 CET | Original file | https://www.mdpi.com/2072-6643/9/3/268/xml |
| article pdf uploaded. | 11 March 2017 11:02 CET | Version of Record | https://www.mdpi.com/2072-6643/9/3/268/pdf |
