| article html file updated | 7 February 2020 20:47 CET | Update | https://www.mdpi.com/2076-0760/6/1/2 |
| article html file updated | 22 September 2019 17:50 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:49 CEST | Update | N/A |
| article pdf uploaded. | 9 October 2017 04:21 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/1/2/pdf |
| article pdf uploaded. | 9 March 2017 02:45 CET | Updated version of record | https://www.mdpi.com/2076-0760/6/1/2/pdf-vor |
| article html file updated | 6 January 2017 22:22 CET | Update | N/A |
| article xml uploaded. | 6 January 2017 15:08 CET | Update | https://www.mdpi.com/2076-0760/6/1/2/xml |
| article pdf uploaded. | 6 January 2017 15:08 CET | Updated version of record | https://www.mdpi.com/2076-0760/6/1/2/pdf-vor |
| article html file updated | 4 January 2017 11:04 CET | Original file | N/A |
| article pdf uploaded. | 4 January 2017 11:03 CET | Version of Record | https://www.mdpi.com/2076-0760/6/1/2/pdf-vor |
