| article html file updated | 8 February 2020 20:19 CET | Update | https://www.mdpi.com/2306-5710/3/4/53 |
| article html file updated | 2 May 2019 17:01 CEST | Update | - |
| article html file updated | 14 November 2017 04:04 CET | Update | - |
| article xml uploaded. | 14 November 2017 04:03 CET | Update | https://www.mdpi.com/2306-5710/3/4/53/xml |
| article pdf uploaded. | 14 November 2017 04:03 CET | Updated version of record | https://www.mdpi.com/2306-5710/3/4/53/pdf |
| article html file updated | 3 November 2017 16:51 CET | Original file | - |
| article xml uploaded. | 3 November 2017 16:49 CET | Original file | - |
| article pdf uploaded. | 3 November 2017 16:49 CET | Version of Record | https://www.mdpi.com/2306-5710/3/4/53/pdf-vor |
