| article html file updated | 8 February 2020 03:25 CET | Update | https://www.mdpi.com/2076-3298/4/2/33 |
| article html file updated | 24 September 2019 06:50 CEST | Update | - |
| article html file updated | 4 May 2019 02:30 CEST | Update | - |
| article html file updated | 29 June 2017 11:25 CEST | Update | - |
| article html file updated | 12 April 2017 15:44 CEST | Original file | - |
| article xml uploaded. | 12 April 2017 15:43 CEST | Original file | https://www.mdpi.com/2076-3298/4/2/33/xml |
| article pdf uploaded. | 12 April 2017 15:43 CEST | Version of Record | https://www.mdpi.com/2076-3298/4/2/33/pdf |
