| article html file updated | 8 February 2020 11:24 CET | Update | https://www.mdpi.com/2077-0383/6/7/70 |
| article html file updated | 3 May 2019 11:36 CEST | Update | - |
| article html file updated | 27 March 2019 16:32 CET | Update | - |
| article html file updated | 28 July 2017 11:49 CEST | Update | - |
| article html file updated | 19 July 2017 15:38 CEST | Update | - |
| article html file updated | 19 July 2017 15:38 CEST | Update | - |
| article html file updated | 19 July 2017 15:37 CEST | Original file | - |
| article xml uploaded. | 19 July 2017 15:36 CEST | Original file | https://www.mdpi.com/2077-0383/6/7/70/xml |
| article pdf uploaded. | 19 July 2017 15:36 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/7/70/pdf |
