| article html file updated | 8 February 2020 10:47 CET | Update | https://www.mdpi.com/2220-9964/6/7/214 |
| article html file updated | 14 November 2019 09:08 CET | Update | - |
| article xml uploaded. | 14 November 2019 09:07 CET | Update | https://www.mdpi.com/2220-9964/6/7/214/xml |
| article html file updated | 25 September 2019 21:35 CEST | Update | - |
| article html file updated | 3 May 2019 12:47 CEST | Update | - |
| article html file updated | 31 July 2017 07:31 CEST | Update | - |
| article html file updated | 12 July 2017 11:13 CEST | Original file | - |
| article pdf uploaded. | 12 July 2017 11:12 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/7/214/pdf |
