| article html file updated | 9 February 2020 07:43 CET | Update | https://www.mdpi.com/2076-3298/5/3/33 |
| article html file updated | 1 October 2019 01:36 CEST | Update | - |
| article html file updated | 1 May 2019 16:07 CEST | Update | - |
| article html file updated | 17 April 2019 15:36 CEST | Update | - |
| article html file updated | 29 March 2019 01:45 CET | Update | - |
| article html file updated | 26 March 2018 12:49 CEST | Update | - |
| article html file updated | 5 March 2018 11:57 CET | Original file | - |
| article xml uploaded. | 5 March 2018 11:56 CET | Original file | https://www.mdpi.com/2076-3298/5/3/33/xml |
| article pdf uploaded. | 5 March 2018 11:56 CET | Updated version of record | https://www.mdpi.com/2076-3298/5/3/33/pdf |
| article pdf uploaded. | 26 February 2018 16:09 CET | Version of Record | https://www.mdpi.com/2076-3298/5/3/33/pdf-vor |