| article html file updated | 7 February 2020 21:17 CET | Update | https://www.mdpi.com/2304-6775/5/1/3 |
| article html file updated | 4 May 2019 15:43 CEST | Update | - |
| article html file updated | 30 March 2017 08:54 CEST | Update | - |
| article html file updated | 12 January 2017 05:33 CET | Original file | - |
| article xml uploaded. | 12 January 2017 05:32 CET | Original file | https://www.mdpi.com/2304-6775/5/1/3/xml |
| article pdf uploaded. | 12 January 2017 05:32 CET | Version of Record | https://www.mdpi.com/2304-6775/5/1/3/pdf |
