| article html file updated | 8 February 2020 05:20 CET | Update | https://www.mdpi.com/2297-8739/4/2/16 |
| article html file updated | 3 May 2019 23:01 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:14 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:52 CEST | Update | N/A |
| article html file updated | 8 May 2017 12:38 CEST | Original file | N/A |
| article xml uploaded. | 8 May 2017 12:37 CEST | Original file | https://www.mdpi.com/2297-8739/4/2/16/xml |
| article pdf uploaded. | 8 May 2017 12:37 CEST | Version of Record | https://www.mdpi.com/2297-8739/4/2/16/pdf |
