| article html file updated | 7 February 2020 22:41 CET | Update | https://www.mdpi.com/2076-3417/7/2/140 |
| article html file updated | 23 September 2019 04:01 CEST | Update | - |
| article html file updated | 4 May 2019 12:40 CEST | Update | - |
| article html file updated | 1 March 2017 04:28 CET | Update | - |
| article html file updated | 4 February 2017 12:13 CET | Original file | - |
| article xml uploaded. | 4 February 2017 12:11 CET | Original file | https://www.mdpi.com/2076-3417/7/2/140/xml |
| article pdf uploaded. | 4 February 2017 12:11 CET | Version of Record | https://www.mdpi.com/2076-3417/7/2/140/pdf |
