| article html file updated | 7 February 2020 21:05 CET | Update | https://www.mdpi.com/2076-0760/6/1/4 |
| article html file updated | 4 May 2019 16:08 CEST | Update | N/A |
| article html file updated | 6 February 2017 11:08 CET | Update | N/A |
| article html file updated | 6 February 2017 11:08 CET | Update | N/A |
| article xml uploaded. | 6 February 2017 11:07 CET | Update | https://www.mdpi.com/2076-0760/6/1/4/xml |
| article pdf uploaded. | 6 February 2017 11:07 CET | Updated version of record | https://www.mdpi.com/2076-0760/6/1/4/pdf |
| article html file updated | 12 January 2017 07:26 CET | Update | N/A |
| article html file updated | 12 January 2017 07:26 CET | Update | N/A |
| article html file updated | 12 January 2017 07:26 CET | Update | N/A |
| article xml uploaded. | 12 January 2017 07:25 CET | Update | N/A |
| article pdf uploaded. | 12 January 2017 07:25 CET | Updated version of record | https://www.mdpi.com/2076-0760/6/1/4/pdf-vor |
| article html file updated | 10 January 2017 13:59 CET | Update | N/A |
| article html file updated | 10 January 2017 13:59 CET | Update | N/A |
| article html file updated | 10 January 2017 13:59 CET | Original file | N/A |
| article xml uploaded. | 10 January 2017 13:58 CET | Original file | N/A |
| article pdf uploaded. | 10 January 2017 13:58 CET | Version of Record | https://www.mdpi.com/2076-0760/6/1/4/pdf-vor |
