| article html file updated | 8 February 2020 11:37 CET | Update | https://www.mdpi.com/2077-0383/6/7/72 |
| article html file updated | 26 September 2019 02:01 CEST | Update | - |
| article html file updated | 3 May 2019 11:11 CEST | Update | - |
| article html file updated | 27 March 2019 16:56 CET | Update | - |
| article html file updated | 28 July 2017 11:48 CEST | Update | - |
| article html file updated | 21 July 2017 11:20 CEST | Update | - |
| article html file updated | 21 July 2017 11:19 CEST | Update | - |
| article html file updated | 21 July 2017 11:19 CEST | Original file | - |
| article xml uploaded. | 21 July 2017 11:18 CEST | Original file | https://www.mdpi.com/2077-0383/6/7/72/xml |
| article pdf uploaded. | 21 July 2017 11:18 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/7/72/pdf |
