| article html file updated | 8 February 2020 00:54 CET | Update | https://www.mdpi.com/2227-9032/5/1/13 |
| article html file updated | 23 September 2019 16:39 CEST | Update | - |
| article html file updated | 4 May 2019 07:56 CEST | Update | - |
| article html file updated | 30 March 2017 11:35 CEST | Update | - |
| article html file updated | 7 March 2017 07:48 CET | Original file | - |
| article xml uploaded. | 7 March 2017 07:47 CET | Original file | https://www.mdpi.com/2227-9032/5/1/13/xml |
| article pdf uploaded. | 7 March 2017 07:47 CET | Version of Record | https://www.mdpi.com/2227-9032/5/1/13/pdf |
