| article html file updated | 8 February 2020 17:57 CET | Update | https://www.mdpi.com/2076-3298/4/4/72 |
| article html file updated | 27 September 2019 14:33 CEST | Update | N/A |
| article html file updated | 2 May 2019 22:24 CEST | Update | N/A |
| article html file updated | 2 January 2018 15:30 CET | Update | N/A |
| article html file updated | 9 October 2017 15:34 CEST | Original file | N/A |
| article xml uploaded. | 9 October 2017 15:33 CEST | Original file | https://www.mdpi.com/2076-3298/4/4/72/xml |
| article pdf uploaded. | 9 October 2017 15:33 CEST | Updated version of record | https://www.mdpi.com/2076-3298/4/4/72/pdf |
| article pdf uploaded. | 8 October 2017 11:11 CEST | Version of Record | https://www.mdpi.com/2076-3298/4/4/72/pdf-vor |
