| article html file updated | 8 February 2020 15:32 CET | Update | https://www.mdpi.com/2220-9964/6/9/282 |
| article html file updated | 26 September 2019 23:58 CEST | Update | N/A |
| article html file updated | 3 May 2019 03:11 CEST | Update | N/A |
| article html file updated | 26 September 2017 12:50 CEST | Update | N/A |
| article html file updated | 7 September 2017 11:59 CEST | Original file | N/A |
| article xml uploaded. | 7 September 2017 11:58 CEST | Original file | https://www.mdpi.com/2220-9964/6/9/282/xml |
| article pdf uploaded. | 7 September 2017 11:58 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/9/282/pdf |
