| article html file updated | 8 February 2020 09:12 CET | Update | https://www.mdpi.com/2077-0383/6/7/63 |
| article html file updated | 25 September 2019 13:18 CEST | Update | - |
| article html file updated | 3 May 2019 15:44 CEST | Update | - |
| article html file updated | 28 July 2017 11:48 CEST | Update | - |
| article html file updated | 25 June 2017 09:34 CEST | Original file | - |
| article xml uploaded. | 25 June 2017 09:33 CEST | Original file | https://www.mdpi.com/2077-0383/6/7/63/xml |
| article pdf uploaded. | 25 June 2017 09:33 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/7/63/pdf |
