| article html file updated | 9 February 2020 04:07 CET | Update | https://www.mdpi.com/2297-8739/5/1/8 |
| article html file updated | 30 September 2019 04:10 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:00 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:32 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:54 CET | Update | N/A |
| article html file updated | 27 March 2018 15:11 CEST | Update | N/A |
| article html file updated | 24 January 2018 05:06 CET | Original file | N/A |
| article xml uploaded. | 24 January 2018 05:05 CET | Original file | https://www.mdpi.com/2297-8739/5/1/8/xml |
| article pdf uploaded. | 24 January 2018 05:05 CET | Version of Record | https://www.mdpi.com/2297-8739/5/1/8/pdf |
