| article html file updated | 8 February 2020 01:42 CET | Update | https://www.mdpi.com/2218-6581/6/1/5 |
| article html file updated | 23 September 2019 21:10 CEST | Update | - |
| article html file updated | 4 May 2019 06:10 CEST | Update | - |
| article html file updated | 30 March 2017 08:57 CEST | Update | - |
| article html file updated | 17 March 2017 12:34 CET | Original file | - |
| article xml uploaded. | 17 March 2017 12:33 CET | Update | https://www.mdpi.com/2218-6581/6/1/5/xml |
| article pdf uploaded. | 17 March 2017 12:33 CET | Version of Record | https://www.mdpi.com/2218-6581/6/1/5/pdf |
