| article html file updated | 8 February 2020 20:11 CET | Update | https://www.mdpi.com/2076-3298/4/4/77 |
| article html file updated | 28 September 2019 04:45 CEST | Update | N/A |
| article html file updated | 2 May 2019 17:19 CEST | Update | N/A |
| article html file updated | 2 January 2018 15:31 CET | Update | N/A |
| article html file updated | 2 November 2017 13:13 CET | Original file | N/A |
| article xml uploaded. | 2 November 2017 13:11 CET | Original file | https://www.mdpi.com/2076-3298/4/4/77/xml |
| article pdf uploaded. | 2 November 2017 13:11 CET | Version of Record | https://www.mdpi.com/2076-3298/4/4/77/pdf |
