| article html file updated | 7 February 2020 02:19 CET | Update | https://www.mdpi.com/2077-0472/5/4/1289 |
| article html file updated | 21 September 2019 08:03 CEST | Update | - |
| article html file updated | 6 May 2019 04:49 CEST | Update | - |
| article html file updated | 26 March 2019 16:37 CET | Original file | - |
| article pdf uploaded. | 17 December 2015 15:42 CET | Version of Record | https://www.mdpi.com/2077-0472/5/4/1289/pdf |
| article xml uploaded. | 17 December 2015 15:42 CET | Original file | https://www.mdpi.com/2077-0472/5/4/1289/xml |
