| article html file updated | 8 February 2020 02:07 CET | Update | https://www.mdpi.com/2076-3417/7/4/314 |
| article html file updated | 23 September 2019 23:39 CEST | Update | - |
| article html file updated | 4 May 2019 05:17 CEST | Update | - |
| article html file updated | 28 April 2017 05:02 CEST | Update | - |
| article html file updated | 27 March 2017 14:55 CEST | Original file | - |
| article xml uploaded. | 27 March 2017 14:53 CEST | Update | https://www.mdpi.com/2076-3417/7/4/314/xml |
| article pdf uploaded. | 27 March 2017 14:53 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/314/pdf |
| article pdf uploaded. | 23 March 2017 13:05 CET | Version of Record | https://www.mdpi.com/2076-3417/7/4/314/pdf-vor |
