| article html file updated | 8 February 2020 18:41 CET | Update | https://www.mdpi.com/2306-5354/4/4/86 |
| article html file updated | 27 September 2019 19:48 CEST | Update | N/A |
| article html file updated | 2 May 2019 20:46 CEST | Update | N/A |
| article html file updated | 2 January 2018 13:30 CET | Update | N/A |
| article html file updated | 17 October 2017 12:31 CEST | Original file | N/A |
| article xml uploaded. | 17 October 2017 12:30 CEST | Original file | https://www.mdpi.com/2306-5354/4/4/86/xml |
| article pdf uploaded. | 17 October 2017 12:30 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/4/86/pdf |
