| article html file updated | 7 February 2020 17:29 CET | Update | https://www.mdpi.com/2077-0472/6/4/58 |
| article html file updated | 4 May 2019 23:33 CEST | Update | - |
| article html file updated | 28 December 2016 05:22 CET | Update | - |
| article html file updated | 24 November 2016 07:09 CET | Update | - |
| article xml uploaded. | 24 November 2016 05:29 CET | Update | https://www.mdpi.com/2077-0472/6/4/58/xml |
| article xml uploaded. | 24 November 2016 05:29 CET | Update | - |
| article pdf uploaded. | 24 November 2016 05:29 CET | Updated version of record | https://www.mdpi.com/2077-0472/6/4/58/pdf |
| article html file updated | 4 November 2016 03:48 CET | Original file | - |
| article xml uploaded. | 4 November 2016 03:47 CET | Original file | - |
| article pdf uploaded. | 4 November 2016 03:47 CET | Version of Record | https://www.mdpi.com/2077-0472/6/4/58/pdf-vor |
