| article html file updated | 8 February 2020 06:53 CET | Update | https://www.mdpi.com/2076-3417/7/6/557 |
| article html file updated | 25 September 2019 01:18 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:04 CEST | Update | N/A |
| article html file updated | 27 June 2017 09:31 CEST | Update | N/A |
| article html file updated | 2 June 2017 13:49 CEST | Original file | N/A |
| article xml uploaded. | 2 June 2017 13:48 CEST | Original file | https://www.mdpi.com/2076-3417/7/6/557/xml |
| article pdf uploaded. | 2 June 2017 13:48 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/6/557/pdf |
| article pdf uploaded. | 27 May 2017 12:11 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/557/pdf-vor |
