| article html file updated | 7 February 2020 04:43 CET | Update | https://www.mdpi.com/2072-6694/8/2/23 |
| article html file updated | 21 September 2019 11:34 CEST | Update | N/A |
| article html file updated | 5 May 2019 23:58 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:03 CET | Original file | N/A |
| article pdf uploaded. | 22 February 2016 11:08 CET | Updated version of record | https://www.mdpi.com/2072-6694/8/2/23/pdf |
| article pdf uploaded. | 18 February 2016 11:49 CET | Version of Record | https://www.mdpi.com/2072-6694/8/2/23/pdf-vor |
| article xml uploaded. | 18 February 2016 11:49 CET | Original file | https://www.mdpi.com/2072-6694/8/2/23/xml |
