| article html file updated | 9 February 2020 11:06 CET | Update | https://www.mdpi.com/2076-3298/5/4/44 |
| article html file updated | 1 October 2019 22:33 CEST | Update | - |
| article html file updated | 1 May 2019 09:03 CEST | Update | - |
| article html file updated | 17 April 2019 08:58 CEST | Update | - |
| article html file updated | 29 March 2019 09:27 CET | Update | - |
| article html file updated | 1 May 2018 05:31 CEST | Update | - |
| article html file updated | 24 March 2018 13:00 CET | Original file | - |
| article xml uploaded. | 24 March 2018 12:58 CET | Original file | https://www.mdpi.com/2076-3298/5/4/44/xml |
| article pdf uploaded. | 24 March 2018 12:58 CET | Version of Record | https://www.mdpi.com/2076-3298/5/4/44/pdf |
