| article html file updated | 9 February 2020 14:02 CET | Update | https://www.mdpi.com/2076-3417/8/4/620 |
| article html file updated | 2 October 2019 16:15 CEST | Update | N/A |
| article html file updated | 1 May 2019 03:03 CEST | Update | N/A |
| article html file updated | 17 April 2019 03:29 CEST | Update | N/A |
| article html file updated | 29 March 2019 16:11 CET | Update | N/A |
| article html file updated | 2 May 2018 14:43 CEST | Update | N/A |
| article html file updated | 17 April 2018 17:08 CEST | Original file | N/A |
| article xml uploaded. | 17 April 2018 17:06 CEST | Original file | https://www.mdpi.com/2076-3417/8/4/620/xml |
| article pdf uploaded. | 17 April 2018 17:06 CEST | Updated version of record | https://www.mdpi.com/2076-3417/8/4/620/pdf |
| article pdf uploaded. | 16 April 2018 17:44 CEST | Version of Record | https://www.mdpi.com/2076-3417/8/4/620/pdf-vor |
