| article html file updated | 17 November 2016 11:35 CET | Original file | https://www.mdpi.com/2409-515X/2/4/12 |
| article xml uploaded. | 17 November 2016 11:34 CET | Original file | https://www.mdpi.com/2409-515X/2/4/12/xml |
| article pdf uploaded. | 17 November 2016 11:34 CET | Version of Record | https://www.mdpi.com/2409-515X/2/4/12/pdf |
