| article html file updated | 7 February 2020 20:36 CET | Update | https://www.mdpi.com/2076-3417/7/1/42 |
| article html file updated | 22 September 2019 16:56 CEST | Update | - |
| article html file updated | 4 May 2019 17:11 CEST | Update | - |
| article html file updated | 8 February 2017 09:11 CET | Update | - |
| article html file updated | 31 December 2016 09:40 CET | Original file | - |
| article xml uploaded. | 31 December 2016 09:38 CET | Update | https://www.mdpi.com/2076-3417/7/1/42/xml |
| article xml uploaded. | 31 December 2016 09:38 CET | Original file | - |
| article pdf uploaded. | 31 December 2016 09:38 CET | Version of Record | https://www.mdpi.com/2076-3417/7/1/42/pdf |
