| article html file updated | 8 February 2020 07:56 CET | Update | https://www.mdpi.com/2305-6320/4/2/38 |
| article html file updated | 25 September 2019 06:37 CEST | Update | - |
| article html file updated | 3 May 2019 18:06 CEST | Update | - |
| article html file updated | 9 June 2017 15:11 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 15:10 CEST | Original file | https://www.mdpi.com/2305-6320/4/2/38/xml |
| article pdf uploaded. | 9 June 2017 15:10 CEST | Version of Record | https://www.mdpi.com/2305-6320/4/2/38/pdf |
