| article html file updated | 8 February 2020 15:43 CET | Update | https://www.mdpi.com/2220-9964/6/9/285 |
| article html file updated | 27 September 2019 00:57 CEST | Update | N/A |
| article html file updated | 3 May 2019 02:50 CEST | Update | N/A |
| article html file updated | 26 September 2017 12:51 CEST | Update | N/A |
| article html file updated | 8 September 2017 14:12 CEST | Original file | N/A |
| article xml uploaded. | 8 September 2017 14:11 CEST | Original file | https://www.mdpi.com/2220-9964/6/9/285/xml |
| article pdf uploaded. | 8 September 2017 14:11 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/9/285/pdf |
