| article html file updated | 7 February 2020 10:05 CET | Update | https://www.mdpi.com/2297-8739/3/2/19 |
| article html file updated | 5 May 2019 13:08 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:19 CET | Update | N/A |
| article html file updated | 1 July 2016 12:50 CEST | Update | N/A |
| article html file updated | 14 June 2016 22:40 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2016 09:58 CEST | Original file | https://www.mdpi.com/2297-8739/3/2/19/xml |
| article pdf uploaded. | 13 June 2016 09:58 CEST | Version of Record | https://www.mdpi.com/2297-8739/3/2/19/pdf |
