| article html file updated | 8 February 2020 04:08 CET | Update | https://www.mdpi.com/2076-0817/6/2/17 |
| article html file updated | 24 September 2019 10:56 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:11 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:39 CEST | Update | N/A |
| article html file updated | 26 April 2017 06:21 CEST | Original file | N/A |
| article xml uploaded. | 26 April 2017 06:19 CEST | Original file | https://www.mdpi.com/2076-0817/6/2/17/xml |
| article pdf uploaded. | 26 April 2017 06:19 CEST | Updated version of record | https://www.mdpi.com/2076-0817/6/2/17/pdf |
| article pdf uploaded. | 21 April 2017 15:18 CEST | Version of Record | https://www.mdpi.com/2076-0817/6/2/17/pdf-vor |
