| article html file updated | 8 February 2020 03:54 CET | Update | https://www.mdpi.com/2304-6732/4/2/32 |
| article html file updated | 24 September 2019 09:34 CEST | Update | - |
| article html file updated | 4 May 2019 01:38 CEST | Update | - |
| article html file updated | 29 June 2017 12:54 CEST | Update | - |
| article html file updated | 19 April 2017 12:32 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 12:30 CEST | Original file | https://www.mdpi.com/2304-6732/4/2/32/xml |
| article pdf uploaded. | 19 April 2017 12:30 CEST | Version of Record | https://www.mdpi.com/2304-6732/4/2/32/pdf |
