| article html file updated | 8 February 2020 06:15 CET | Update | https://www.mdpi.com/2076-3298/4/2/38 |
| article html file updated | 24 September 2019 21:56 CEST | Update | N/A |
| article html file updated | 3 May 2019 21:17 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:26 CEST | Update | N/A |
| article html file updated | 22 May 2017 04:53 CEST | Update | N/A |
| article html file updated | 19 May 2017 11:01 CEST | Original file | N/A |
| article xml uploaded. | 19 May 2017 11:00 CEST | Original file | https://www.mdpi.com/2076-3298/4/2/38/xml |
| article pdf uploaded. | 19 May 2017 11:00 CEST | Version of Record | https://www.mdpi.com/2076-3298/4/2/38/pdf |
