| article html file updated | 6 February 2020 22:48 CET | Update | https://www.mdpi.com/2076-0760/4/3/718 |
| article html file updated | 6 May 2019 11:21 CEST | Update | N/A |
| article html file updated | 26 March 2019 10:44 CET | Original file | N/A |
| article pdf uploaded. | 15 September 2015 15:03 CEST | Version of Record | https://www.mdpi.com/2076-0760/4/3/718/pdf |
