| article html file updated | 8 February 2020 03:35 CET | Update | https://www.mdpi.com/2304-6740/5/2/25 |
| article html file updated | 24 September 2019 07:43 CEST | Update | - |
| article html file updated | 4 May 2019 02:13 CEST | Update | - |
| article html file updated | 30 June 2017 08:24 CEST | Update | - |
| article html file updated | 14 April 2017 12:31 CEST | Original file | - |
| article xml uploaded. | 14 April 2017 12:30 CEST | Update | https://www.mdpi.com/2304-6740/5/2/25/xml |
| article pdf uploaded. | 14 April 2017 12:30 CEST | Version of Record | https://www.mdpi.com/2304-6740/5/2/25/pdf |
