| article html file updated | 8 February 2020 03:11 CET | Update | https://www.mdpi.com/2305-6320/4/2/19 |
| article html file updated | 24 September 2019 05:34 CEST | Update | - |
| article html file updated | 4 May 2019 02:59 CEST | Update | - |
| article html file updated | 13 April 2017 04:28 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 04:27 CEST | Original file | https://www.mdpi.com/2305-6320/4/2/19/xml |
| article pdf uploaded. | 13 April 2017 04:27 CEST | Updated version of record | https://www.mdpi.com/2305-6320/4/2/19/pdf |
| article pdf uploaded. | 8 April 2017 12:38 CEST | Version of Record | https://www.mdpi.com/2305-6320/4/2/19/pdf-vor |
