| article html file updated | 8 February 2020 15:13 CET | Update | https://www.mdpi.com/2076-0817/6/3/40 |
| article html file updated | 26 September 2019 22:15 CEST | Update | N/A |
| article html file updated | 3 May 2019 03:46 CEST | Update | N/A |
| article html file updated | 30 September 2017 11:37 CEST | Update | N/A |
| article html file updated | 4 September 2017 07:53 CEST | Original file | N/A |
| article xml uploaded. | 4 September 2017 07:52 CEST | Original file | https://www.mdpi.com/2076-0817/6/3/40/xml |
| article pdf uploaded. | 4 September 2017 07:52 CEST | Updated version of record | https://www.mdpi.com/2076-0817/6/3/40/pdf |
| article pdf uploaded. | 3 September 2017 12:08 CEST | Version of Record | https://www.mdpi.com/2076-0817/6/3/40/pdf-vor |
