| article html file updated | 8 February 2020 08:18 CET | Update | https://www.mdpi.com/2076-3417/7/6/620 |
| article html file updated | 25 September 2019 08:31 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:26 CEST | Update | N/A |
| article html file updated | 27 June 2017 09:46 CEST | Update | N/A |
| article html file updated | 17 June 2017 22:26 CEST | Original file | N/A |
| article xml uploaded. | 17 June 2017 04:57 CEST | Original file | https://www.mdpi.com/2076-3417/7/6/620/xml |
| article pdf uploaded. | 17 June 2017 04:57 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/6/620/pdf |
| article pdf uploaded. | 14 June 2017 14:45 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/620/pdf-vor |
