| article html file updated | 28 September 2017 09:48 CEST | Original file | https://www.mdpi.com/2409-515X/3/4/26 |
| article xml uploaded. | 28 September 2017 09:47 CEST | Original file | https://www.mdpi.com/2409-515X/3/4/26/xml |
| article pdf uploaded. | 28 September 2017 09:47 CEST | Version of Record | https://www.mdpi.com/2409-515X/3/4/26/pdf |
