| article html file updated | 7 February 2020 18:29 CET | Update | https://www.mdpi.com/2306-5710/2/4/32 |
| article html file updated | 4 May 2019 21:37 CEST | Update | N/A |
| article html file updated | 23 November 2016 11:00 CET | Original file | N/A |
| article xml uploaded. | 23 November 2016 10:58 CET | Original file | https://www.mdpi.com/2306-5710/2/4/32/xml |
| article pdf uploaded. | 23 November 2016 10:58 CET | Version of Record | https://www.mdpi.com/2306-5710/2/4/32/pdf |
