| article html file updated | 8 February 2020 02:13 CET | Update | https://www.mdpi.com/2076-3417/7/4/320 |
| article html file updated | 24 September 2019 00:07 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:05 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:03 CEST | Update | N/A |
| article html file updated | 28 March 2017 13:02 CEST | Original file | N/A |
| article xml uploaded. | 28 March 2017 13:01 CEST | Update | https://www.mdpi.com/2076-3417/7/4/320/xml |
| article pdf uploaded. | 28 March 2017 13:01 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/320/pdf |
| article pdf uploaded. | 24 March 2017 14:24 CET | Version of Record | https://www.mdpi.com/2076-3417/7/4/320/pdf-vor |
