| article html file updated | 7 February 2020 12:54 CET | Update | https://www.mdpi.com/2076-3417/6/8/221 |
| article html file updated | 5 May 2019 07:53 CEST | Update | - |
| article html file updated | 27 March 2019 12:47 CET | Update | - |
| article html file updated | 25 August 2016 07:13 CEST | Update | - |
| article html file updated | 5 August 2016 11:17 CEST | Update | - |
| article xml uploaded. | 5 August 2016 11:16 CEST | Update | https://www.mdpi.com/2076-3417/6/8/221/xml |
| article pdf uploaded. | 5 August 2016 11:16 CEST | Updated version of record | https://www.mdpi.com/2076-3417/6/8/221/pdf |
| article html file updated | 5 August 2016 11:15 CEST | Original file | - |
| article pdf uploaded. | 5 August 2016 11:14 CEST | Version of Record | https://www.mdpi.com/2076-3417/6/8/221/pdf-vor |
