| article html file updated | 8 February 2020 03:00 CET | Update | https://www.mdpi.com/2075-4663/5/2/23 |
| article html file updated | 24 September 2019 04:34 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:21 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:51 CEST | Update | N/A |
| article html file updated | 12 April 2017 10:34 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2017 10:33 CEST | Original file | https://www.mdpi.com/2075-4663/5/2/23/xml |
| article pdf uploaded. | 12 April 2017 10:33 CEST | Updated version of record | https://www.mdpi.com/2075-4663/5/2/23/pdf |
| article pdf uploaded. | 6 April 2017 11:57 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/23/pdf-vor |
